- A 32-year-old patient at 28 weeks of gestation presents with sudden onset of severe abdominal pain, vaginal bleeding, and hypotension. The most likely diagnosis is:
- Placenta previa
- Uterine rupture
- Abruptio placentae
- Ectopic pregnancy
Correct answer: Abruptio placentae
Correct answer: Abruptio placentae. Explanation: The sudden onset of severe abdominal pain, vaginal bleeding, and hypotension at 28 weeks of gestation is most indicative of abruptio placentae, a condition where the placental lining has separated from the uterus before delivery. Uterine rupture and ectopic pregnancy are less likely given the gestational age and presentation, and placenta previa typically presents with painless bleeding.
- In a patient with preeclampsia, which of the following symptoms would necessitate immediate medical intervention?
- Mild headache
- Swelling of the hands and feet
- Blurred vision
- Proteinuria
Correct answer: Blurred vision
Correct answer: Blurred vision. Explanation: Blurred vision in a patient with preeclampsia is a symptom of severe preeclampsia and indicates possible progression to eclampsia, which can be life-threatening for both the mother and fetus. While proteinuria is a diagnostic criterion for preeclampsia, and swelling and headache are common symptoms, blurred vision represents a more urgent complication requiring immediate intervention.
- A pregnant patient presents with hyperemesis gravidarum. What is the primary treatment goal for this condition?
- Increase fetal weight
- Enhance maternal nutrition
- Prevent aspiration
- Correct electrolyte imbalance
Correct answer: Correct electrolyte imbalance
Correct answer: Correct electrolyte imbalance. Explanation: While all the options are relevant to the care of a patient with hyperemesis gravidarum, the primary treatment goal is to correct electrolyte imbalance caused by severe nausea and vomiting. This is crucial to prevent complications and stabilize the patient before addressing nutrition and other concerns.
- In the context of gestational diabetes, which of the following fetal complications is most commonly associated?
- Small for gestational age 'SGA'
- Congenital heart defects
- Macrosomia
- Renal agenesis
Correct answer: Macrosomia
Correct answer: Macrosomia. Explanation: Macrosomia, or having a birth weight over 4,000 grams, is a common complication associated with gestational diabetes due to the overnutrition and high blood sugar levels experienced by the fetus, leading to excessive growth.
- A patient at 35 weeks gestation with a history of deep vein thrombosis (DVT) is most likely to be managed with which of the following medications?
- Warfarin
- Heparin
- Aspirin
- Ibuprofen
Correct answer: Heparin
Correct answer: Heparin. Explanation: Heparin is the preferred anticoagulant in pregnancy for managing conditions like DVT because it does not cross the placenta and is less likely to have adverse effects on the fetus compared to warfarin, which is teratogenic. Aspirin and ibuprofen are not primary treatments for DVT.
- A pregnant patient at 24 weeks gestation presents with painless, bright red vaginal bleeding. The most likely diagnosis is:
- Vasa previa
- Placenta accreta
- Placenta previa
- Uterine rupture
Correct answer: Placenta previa
Correct answer: Placenta previa. Explanation: Painless, bright red vaginal bleeding in the second or third trimester is characteristic of placenta previa, where the placenta covers the cervical os. Vasa previa and placenta accreta present differently, and uterine rupture typically involves pain.
- Which condition is most likely to result in fetal bradycardia during labor?
- Maternal fever
- Uterine hyperstimulation
- Fetal anemia
- Meconium-stained amniotic fluid
Correct answer: Uterine hyperstimulation
Correct answer: Uterine hyperstimulation. Explanation: Uterine hyperstimulation can lead to reduced uterine blood flow and oxygen delivery to the fetus, resulting in fetal bradycardia. The other options are not directly associated with fetal bradycardia as a primary symptom.
- In managing a pregnant patient with severe preeclampsia, which medication is primarily used to prevent seizures?
- Magnesium sulfate
- Nifedipine
- Hydralazine
- Labetalol
Correct answer: Magnesium sulfate
Correct answer: Magnesium sulfate. Explanation: Magnesium sulfate is the medication of choice for seizure prophylaxis in patients with severe preeclampsia or eclampsia, as it helps prevent eclamptic seizures.
- A patient with a twin pregnancy is at increased risk for which of the following complications?
- Decreased fetal movements
- Single umbilical artery
- Twin-twin transfusion syndrome
- Unilateral fetal growth restriction
Correct answer: Twin-twin transfusion syndrome
Correct answer: Twin-twin transfusion syndrome. Explanation: Twin-twin transfusion syndrome is a specific complication of monochorionic twins, where there is an imbalance in the blood flow between the twins via a shared placental connection, leading to disproportionate growth and potential morbidity.
- In a patient with oligohydramnios, which of the following is the most concerning fetal risk?
- Macrosomia
- Limb deformities
- Fetal overactivity
- Polyhydramnios in a co-twin
Correct answer: Limb deformities
Correct answer: Limb deformities. Explanation: Oligohydramnios can lead to compression of fetal structures, resulting in limb deformities, as well as pulmonary hypoplasia. The other options are not directly associated with oligohydramnios.
- Which of the following is a recommended treatment for intrahepatic cholestasis of pregnancy?
- Ursodeoxycholic acid
- Methyldopa
- Magnesium sulfate
- Atosiban
Correct answer: Ursodeoxycholic acid
Correct answer: Ursodeoxycholic acid. Explanation: Ursodeoxycholic acid is recommended for the treatment of intrahepatic cholestasis of pregnancy as it helps reduce bile acid levels and alleviate symptoms, improving maternal comfort and potentially reducing fetal risk.
- In the context of preterm labor, which of the following interventions is primarily aimed at enhancing fetal lung maturity?
- Administration of tocolytics
- Corticosteroid administration
- Therapeutic amniocentesis
- Magnesium sulfate administration
Correct answer: Corticosteroid administration
Correct answer: Corticosteroid administration. Explanation: Corticosteroids are administered to pregnant women at risk of preterm birth to accelerate fetal lung maturity, reducing the risk of respiratory distress syndrome in the neonate.
- A pregnant patient with a known complete placenta previa at 34 weeks gestation is most likely to deliver by:
- Vaginal delivery
- Vacuum-assisted delivery
- Cesarean section
- Forceps-assisted delivery
Correct answer: Cesarean section
Correct answer: Cesarean section. Explanation: In the case of complete placenta previa, cesarean section is the preferred mode of delivery to avoid bleeding risks associated with vaginal birth, as the placenta covers the cervical os.
- The presence of which antibody is most concerning for hemolytic disease of the newborn?
- Anti-D
- Anti-A
- Anti-M
- Anti-Kell
Correct answer: Anti-D
Correct answer: Anti-D. Explanation: Anti-D antibodies, related to Rh incompatibility, are most concerning for hemolytic disease of the newborn, as they can cross the placenta and cause red blood cell destruction in the fetus.
- Which diagnostic tool is most appropriate for confirming suspected intrauterine growth restriction (IUGR)?
- Maternal serum alpha-fetoprotein
- Fetal echocardiography
- Doppler ultrasound
- Amniocentesis
Correct answer: Doppler ultrasound
Correct answer: Doppler ultrasound. Explanation: Doppler ultrasound is a critical tool for assessing fetal growth, blood flow, and placental function, providing essential information for diagnosing and managing IUGR.
- In a patient with eclampsia, the initial management step after stabilizing the mother's airway and administering oxygen is to:
- Deliver the baby immediately
- Administer magnesium sulfate
- Perform an emergency cesarean section
- Give antihypertensive medication
Correct answer: Administer magnesium sulfate
Correct answer: Administer magnesium sulfate. Explanation: After ensuring the mother's airway is stable and she is receiving oxygen, the next critical step in managing eclampsia is to administer magnesium sulfate to prevent further seizures.
- A significant risk factor for placental abruption includes:
- Previous cesarean delivery
- Maternal age under 20
- History of diabetes
- Hypertension or preeclampsia
Correct answer: Hypertension or preeclampsia
Correct answer: Hypertension or preeclampsia. Explanation: Hypertension or preeclampsia is a significant risk factor for placental abruption, where the placenta prematurely separates from the uterus, leading to bleeding, pain, and potential fetal distress.
- What is the most common symptom of a molar pregnancy?
- Hyperemesis gravidarum
- Hypertension
- Vaginal bleeding
- Pelvic pain
Correct answer: Vaginal bleeding
Correct answer: Vaginal bleeding. Explanation: Vaginal bleeding is the most common symptom of a molar pregnancy, a type of gestational trophoblastic disease where abnormal trophoblastic cells grow inside the uterus after conception.
- The most effective method to diagnose amniotic fluid embolism is:
- Maternal echocardiography
- Clinical presentation and exclusion of other diagnoses
- Amniocentesis
- MRI of the abdomen
Correct answer: Clinical presentation and exclusion of other diagnoses
Correct answer: Clinical presentation and exclusion of other diagnoses. Explanation: Amniotic fluid embolism is primarily diagnosed based on clinical presentation and by ruling out other potential causes of the symptoms, as there is no specific test for it.
- In the management of a patient with postpartum hemorrhage, which medication is initially preferred to contract the uterus?
- Methergine
- Misoprostol
- Oxytocin
- Tranexamic acid
Correct answer: Oxytocin
Correct answer: Oxytocin. Explanation: Oxytocin is the first-line medication used to contract the uterus and control bleeding in cases of postpartum hemorrhage.
- A patient at 20 weeks gestation with a cerclage in place reports sudden gush of clear fluid and vaginal pressure. The initial assessment should focus on:
- Checking for cord prolapse
- Measuring fundal height
- Assessing for uterine contractions
- Evaluating fetal heart rate
Correct answer: Checking for cord prolapse
Correct answer: Checking for cord prolapse. Explanation: In the context of a sudden gush of fluid with a cerclage in place, the initial concern should be checking for umbilical cord prolapse, a critical emergency, as the membrane rupture could lead to the cord descending through the cervix.
- In a patient with preterm premature rupture of membranes (PPROM), which intervention is most appropriate to reduce neonatal morbidity?
- Immediate delivery
- Administration of corticosteroids
- Therapeutic amniocentesis
- Continuous fetal monitoring
Correct answer: Administration of corticosteroids
Correct answer: Administration of corticosteroids. Explanation: Administering corticosteroids in the case of PPROM can significantly improve neonatal outcomes by enhancing lung maturity and reducing the risks of respiratory distress syndrome and other prematurity-related complications.
- A patient with gestational hypertension is most at risk for developing:
- Gestational diabetes
- Preeclampsia
- Chronic hypertension
- HELLP syndrome
Correct answer: Preeclampsia
Correct answer: Preeclampsia. Explanation: Patients with gestational hypertension have an increased risk of progressing to preeclampsia, a condition characterized by hypertension and either proteinuria or significant end-organ dysfunction.
- Which symptom in a postpartum patient is indicative of Sheehan's syndrome?
- Inability to breastfeed
- Severe abdominal pain
- Persistent vaginal bleeding
- Elevated blood pressure
Correct answer: Inability to breastfeed
Correct answer: Inability to breastfeed. Explanation: Sheehan's syndrome, or postpartum pituitary gland necrosis, often presents with an inability to breastfeed 'agalactorrhea' due to decreased or absent production of pituitary hormones, particularly prolactin.
- For a patient with placenta accreta, which of the following is the recommended delivery plan?
- Vaginal delivery with close monitoring
- Scheduled cesarean delivery with possible hysterectomy
- Induction of labor at term
- Expectant management with weekly ultrasounds
Correct answer: Scheduled cesarean delivery with possible hysterectomy
Correct answer: Scheduled cesarean delivery with possible hysterectomy. Explanation: In cases of placenta accreta, a planned cesarean delivery with the possibility of hysterectomy is recommended due to the high risk of severe hemorrhage that can accompany attempts to detach the placenta from the uterine wall.
- The use of magnesium sulfate in a patient with preeclampsia is primarily to prevent:
- Hypertension
- Seizures
- Fetal distress
- Preterm labor
Correct answer: Seizures
Correct answer: Seizures. Explanation: Magnesium sulfate is used in patients with preeclampsia primarily to prevent eclamptic seizures, which are a serious complication of the condition.
- In the case of fetal demise after 20 weeks of gestation, which of the following is a critical concern for the mother?
- Development of disseminated intravascular coagulation 'DIC'
- Immediate need for cesarean section
- Risk of gestational diabetes
- Likelihood of chronic hypertension
Correct answer: Development of disseminated intravascular coagulation 'DIC'
Correct answer: Development of disseminated intravascular coagulation 'DIC'. Explanation: Following fetal demise after 20 weeks of gestation, there is a significant risk for the mother to develop DIC, a severe coagulation disorder that can lead to serious bleeding or clotting complications.
- A pregnant patient presents with a thyroid storm. What is the immediate treatment priority?
- Beta-blockers
- Thyroidectomy
- Propylthiouracil
- Radioactive iodine therapy
Correct answer: Beta-blockers
Correct answer: Beta-blockers. Explanation: In the case of a thyroid storm during pregnancy, the immediate treatment priority is to stabilize the patient's heart rate and manage symptoms with beta-blockers. Other treatments like propylthiouracil are important for thyroid function management but are secondary to acute symptom control.
- For a patient with a history of recurrent early pregnancy losses, which of the following is a recommended evaluation?
- Serial hCG testing
- Karyotyping of both partners
- Weekly progesterone injections in the first trimester
- Immediate cerclage placement in the next pregnancy
Correct answer: Karyotyping of both partners
Correct answer: Karyotyping of both partners. Explanation: In cases of recurrent early pregnancy losses, karyotyping of both partners is recommended to identify any chromosomal abnormalities that could be contributing to the pregnancy losses.
- The most effective strategy to prevent vertical transmission of HIV from a pregnant woman to her fetus is:
- Cesarean delivery before the onset of labor and rupture of membranes
- Antiretroviral therapy during pregnancy
- Exclusive breastfeeding
- Administration of intravenous immunoglobulin during pregnancy
Correct answer: Antiretroviral therapy during pregnancy
Correct answer: Antiretroviral therapy during pregnancy. Explanation: The most effective strategy to prevent vertical transmission of HIV is the administration of antiretroviral therapy during pregnancy, which significantly reduces the viral load and the risk of transmission to the fetus.
- What is the most likely fetal heart rate (FHR) pattern seen with umbilical cord compression?
- Early decelerations
- Late decelerations
- Variable decelerations
- Sinusoidal pattern
Correct answer: Variable decelerations
Correct answer: Variable decelerations. Explanation: Variable decelerations are abrupt decreases in FHR that are often associated with umbilical cord compression. They can vary in duration, intensity, and timing relative to contractions, distinguishing them from early and late decelerations.
- A fetus with anemia would most likely display which of the following Doppler ultrasound findings?
- Decreased systolic/diastolic 'S/D' ratio in the umbilical artery
- Absent end-diastolic flow in the umbilical artery
- Reversed end-diastolic flow in the umbilical artery
- Increased peak systolic velocity in the middle cerebral artery
Correct answer: Increased peak systolic velocity in the middle cerebral artery
Correct answer: Increased peak systolic velocity in the middle cerebral artery. Explanation: An increased peak systolic velocity in the middle cerebral artery is indicative of fetal anemia. The brain compensates for anemia by increasing blood flow, reflected as increased velocity.
- Which FHR pattern is considered a sign of fetal well-being during non-stress testing (NST)?
- Baseline variability of less than 5 bpm
- Periodic accelerations with fetal movement
- Recurrent late decelerations
- Bradycardia
Correct answer: Periodic accelerations with fetal movement
Correct answer: Periodic accelerations with fetal movement. Explanation: Periodic accelerations with fetal movement during NST are indicative of a reactive test and suggest fetal well-being. They reflect a healthy neurologic response to fetal movement.
- In the context of fetal monitoring, what does a 'saltatory' pattern refer to?
- A pattern with wide fluctuations in the baseline FHR, ranging more than 25 bpm
- A baseline FHR with no detectable variability
- A smooth, sine wave-like undulating pattern in FHR
- A baseline FHR that is consistently below 110 bpm
Correct answer: A pattern with wide fluctuations in the baseline FHR, ranging more than 25 bpm
Correct answer: A pattern with wide fluctuations in the baseline FHR, ranging more than 25 bpm. Explanation: A saltatory pattern in fetal monitoring is characterized by wide, erratic fluctuations of the baseline FHR. This can indicate fetal distress or cord compression.
- The presence of 'mirror artifact' in fetal heart rate monitoring is most commonly associated with which type of monitoring?
- Internal monitoring
- External ultrasound Doppler
- Telemetry monitoring
- External tocodynamometer
Correct answer: External ultrasound Doppler
Correct answer: External ultrasound Doppler. Explanation: The 'mirror artifact' is a phenomenon observed in external ultrasound Doppler monitoring where the FHR appears to be duplicated or mirrored due to reflective signals, often misleading if not correctly identified.
- What is the primary concern associated with persistent fetal tachycardia (>160 bpm for 10 minutes or more)?
- Fetal sleep cycle
- Fetal well-being
- Maternal medication effect
- Maternal fever
Correct answer: Fetal well-being
Correct answer: Fetal well-being. Explanation: Persistent fetal tachycardia can be an indicator of fetal distress, infection, or other complications affecting fetal well-being, and it warrants further evaluation and monitoring.
- In biophysical profile (BPP) scoring, what does a score of 6 out of 10 typically indicate?
- Normal, with no immediate action required
- Borderline, requiring possible reevaluation
- Abnormal, necessitating immediate delivery
- Abnormal, but delivery can be delayed
Correct answer: Borderline, requiring possible reevaluation
Correct answer: Borderline, requiring possible reevaluation. Explanation: A BPP score of 6 out of 10 is considered borderline, suggesting that the fetus may be at some risk. It usually leads to closer monitoring and possibly a repeat BPP to determine the next steps.
- Which of the following is a key feature distinguishing early decelerations from late decelerations in fetal heart rate monitoring?
- The shape of the deceleration
- The timing of the deceleration in relation to contractions
- The duration of the deceleration
- The recovery time to baseline FHR
Correct answer: The timing of the deceleration in relation to contractions
Correct answer: The timing of the deceleration in relation to contractions. Explanation: Early decelerations are synchronized with contractions, indicating fetal head compression, whereas late decelerations begin after the contraction starts and end after it stops, suggesting uteroplacental insufficiency.
- Fetal magnetocardiography is primarily used to assess:
- Fetal heart rate variability
- Fetal lung maturity
- Fetal cardiac electrical activity
- Fetal response to maternal glucose levels
Correct answer: Fetal cardiac electrical activity
Correct answer: Fetal cardiac electrical activity. Explanation: Fetal magnetocardiography is a non-invasive technique used to study the fetal heart's electrical activity, providing detailed information about the fetal cardiac conduction system.
- The 'short-term variability' in fetal heart rate monitoring refers to:
- Fluctuations in FHR from one contraction to the next
- Beat-to-beat variations in FHR
- Changes in FHR over a 10-minute window
- Variations in FHR associated with fetal movements
Correct answer: Beat-to-beat variations in FHR
Correct answer: Beat-to-beat variations in FHR. Explanation: Short-term variability refers to the beat-to-beat fluctuations in the fetal heart rate, which is an important indicator of fetal neural and cardiac regulation.
- Which ultrasound finding is most indicative of fetal aneuploidy?
- Pyelectasis
- Echogenic intracardiac focus
- Choroid plexus cyst
- Nuchal translucency
Correct answer: Nuchal translucency
Correct answer: Nuchal translucency. Explanation: Increased nuchal translucency measured during the first trimester ultrasound is a significant marker for chromosomal abnormalities, including Down syndrome (trisomy 21) and other aneuploidies.
- In twin-to-twin transfusion syndrome (TTTS), what fetal monitoring finding is most concerning?
- Discordant growth
- Polyhydramnios in the donor twin
- Oligohydramnios in the recipient twin
- A "stuck twin" phenomenon
Correct answer: A "stuck twin" phenomenon
Correct answer: A "stuck twin" phenomenon. Explanation: The "stuck twin" phenomenon, where one twin is immobilized due to severe oligohydramnios, is a concerning sign in TTTS, indicating significant imbalance in the circulatory exchange between the twins.
- What does the presence of sinusoidal heart rate pattern typically indicate?
- Normal fetal behavior
- Fetal anemia
- Umbilical cord compression
- Maternal drug use
Correct answer: Fetal anemia
Correct answer: Fetal anemia. Explanation: A sinusoidal heart rate pattern is often associated with fetal anemia. It may also be seen in cases of fetal hypoxia, maternal opioid use, or severe fetal distress.
- Which condition is most likely to cause a false positive reading in fetal heart rate monitoring for bradycardia?
- Maternal supine hypotensive syndrome
- Fetal sleep cycles
- Maternal tachycardia
- Cross-talk with maternal heart rate
Correct answer: Cross-talk with maternal heart rate
Correct answer: Cross-talk with maternal heart rate. Explanation: Cross-talk with the maternal heart rate can lead to a false positive reading for fetal bradycardia on the monitor, as the device may pick up the slower maternal heart rate instead of the fetal rate.
- A significant decrease in fetal movement is reported by the mother. What is the first step in assessment?
- Immediate delivery
- Non-stress test
- Biophysical profile
- Contraction stress test
Correct answer: Non-stress test
Correct answer: Non-stress test. Explanation: The first step in assessing decreased fetal movement is typically a non-stress test, which is a simple, non-invasive test that measures fetal heart rate in response to its own movements.
- What fetal heart rate pattern is indicative of head compression during labor?
- Early decelerations
- Late decelerations
- Variable decelerations
- Prolonged decelerations
Correct answer: Early decelerations
Correct answer: Early decelerations. Explanation: Early decelerations in the fetal heart rate correlate with uterine contractions and are indicative of fetal head compression.
- In the context of electronic fetal monitoring, what is the significance of a 'category III' fetal heart rate tracing?
- Normal and reassuring
- Requires continued monitoring
- Predictive of fetal compromise
- Inconclusive and requires further testing
Correct answer: Predictive of fetal compromise
Correct answer: Predictive of fetal compromise. Explanation: A 'category III' fetal heart rate tracing is considered abnormal and is predictive of fetal compromise, necessitating immediate evaluation and potentially urgent intervention.
- Fetal scalp stimulation during labor is used to assess:
- Fetal oxygenation
- Fetal hair growth
- Maternal-fetal blood incompatibility
- Fetal response to tactile stimuli
Correct answer: Fetal oxygenation
Correct answer: Fetal oxygenation. Explanation: Fetal scalp stimulation is a technique used during labor to assess fetal well-being. An acceleration in the fetal heart rate following stimulation is a good sign of adequate fetal oxygenation.
- The 'Montevideo units' are calculated to assess:
- Fetal heart rate variability
- Fetal breathing movements
- Strength of uterine contractions
- Amniotic fluid index
Correct answer: Strength of uterine contractions
Correct answer: Strength of uterine contractions. Explanation: Montevideo units are calculated by subtracting the baseline uterine pressure from the peak contraction pressure for each contraction within a 10-minute window, then summing these values to assess the strength of uterine contractions during labor.
- The use of vibroacoustic stimulation during a non-stress test is intended to:
- Decrease fetal movement
- Induce fetal sleep
- Elicit a fetal heart rate acceleration
- Measure fetal hearing
Correct answer: Elicit a fetal heart rate acceleration
Correct answer: Elicit a fetal heart rate acceleration. Explanation: Vibroacoustic stimulation is used during a non-stress test to elicit a startle response from the fetus, which is typically followed by a temporary acceleration in heart rate, indicating normal fetal neurologic function.
- A laboring patient exhibits a sudden decrease in fetal heart rate to 70 bpm after an amniotomy. The nurse's initial action should be to:
- Administer oxygen to the mother
- Perform a vaginal examination
- Place the patient in the left lateral position
- Increase IV fluid rate
Correct answer: Perform a vaginal examination
Correct answer: Perform a vaginal examination. Explanation: The sudden decrease in fetal heart rate following an amniotomy may indicate cord prolapse, a critical situation requiring immediate intervention. The initial step is to perform a vaginal examination to assess for cord prolapse, allowing for rapid identification and management of this obstetric emergency.
- When managing a patient with a suspected uterine rupture, what is the most critical initial intervention?
- Administering terbutaline
- Preparing for an emergency cesarean section
- Monitoring fetal heart patterns
- Administering IV fluids
Correct answer: Preparing for an emergency cesarean section
Correct answer: Preparing for an emergency cesarean section. Explanation: Uterine rupture is a life-threatening condition for both the mother and the fetus, requiring immediate surgical intervention. The most critical initial intervention is to prepare for an emergency cesarean section to deliver the baby and manage maternal complications.
- In the context of a precipitous labor, what is the nurse's primary role?
- Encourage the patient to push with each contraction
- Prepare for immediate delivery
- Administer pain medication
- Instruct the patient to breathe through the contractions
Correct answer: Prepare for immediate delivery
Correct answer: Prepare for immediate delivery. Explanation: In cases of precipitous labor, where labor progresses rapidly and birth is imminent, the nurse's primary role is to prepare for immediate delivery to ensure the safety of both the mother and the baby.
- A patient in active labor with an epidural experiences a sudden onset of shortness of breath and hypotension. The nurse suspects:
- Amniotic fluid embolism
- Epidural hematoma
- Local anesthetic toxicity
- Pulmonary embolism
Correct answer: Amniotic fluid embolism
Correct answer: Amniotic fluid embolism. Explanation: Amniotic fluid embolism, characterized by sudden onset of respiratory distress and hypotension, is a rare but critical condition that can occur during labor, especially after membrane rupture or with an epidural in place. It requires immediate recognition and management.
- During labor, a fetal heart rate monitoring shows recurrent late decelerations. The nurse's first intervention should be to:
- Perform a scalp stimulation
- Administer oxygen to the mother
- Change the mother's position
- Increase IV fluid administration
Correct answer: Change the mother's position
Correct answer: Change the mother's position. Explanation: Recurrent late decelerations are a sign of fetal hypoxia. The first intervention should be to change the mother's position to improve placental blood flow and oxygen delivery to the fetus.
- In the case of shoulder dystocia during delivery, what is the initial maneuver the nurse should be prepared to assist with?
- Suprapubic pressure
- McRoberts maneuver
- Woods' screw maneuver
- Zavanelli maneuver
Correct answer: McRoberts maneuver
Correct answer: McRoberts maneuver. Explanation: The McRoberts maneuver, involving hyperflexion of the mother's legs towards her chest, is the initial and often effective approach to resolving shoulder dystocia by widening the pelvis and reducing the shoulder's resistance against the pubic symphysis.
- A patient with a known complete placenta previa is experiencing bright red, painless vaginal bleeding. The nurse's priority intervention is to:
- Prepare the patient for an immediate cesarean section
- Place the patient in a Trendelenburg position
- Administer IV fluids
- Perform a digital vaginal examination
Correct answer: Prepare the patient for an immediate cesarean section
Correct answer: Prepare the patient for an immediate cesarean section. Explanation: In the case of complete placenta previa with active bleeding, the priority is to prepare for an immediate cesarean section to prevent hemorrhage and ensure fetal well-being, as vaginal delivery is contraindicated.
- When a laboring patient's membrane ruptures, the fluid is meconium-stained, and the fetus shows a baseline heart rate of 110 bpm with no decelerations. The nurse's next step is to:
- Prepare for neonatal resuscitation
- Monitor fetal heart rate continuously
- Administer amnioinfusion
- Increase maternal IV fluid rate
Correct answer: Monitor fetal heart rate continuously
Correct answer: Monitor fetal heart rate continuously. Explanation: With meconium-stained fluid and a stable fetal heart rate, continuous fetal monitoring is essential to promptly detect any signs of fetal distress or changes in heart rate patterns, guiding further interventions.
- A laboring patient presents with intense back pain and a fetus in the occiput posterior position. The most effective nursing intervention to alleviate back pain is:
- Administer epidural analgesia
- Apply counterpressure to the sacrum
- Encourage frequent position changes
- Provide warm compresses to the back
Correct answer: Apply counterpressure to the sacrum
Correct answer: Apply counterpressure to the sacrum. Explanation: Counterpressure to the sacrum is an effective technique to alleviate the intense back pain associated with fetal occiput posterior positioning by providing relief against the pressure exerted by the fetal head on maternal structures.
- For a patient with a history of a classical cesarean section, what is the recommended mode of delivery in the current pregnancy?
- Vaginal birth after cesarean 'VBAC'
- Repeat cesarean section at 39 weeks
- Induction of labor at 37 weeks
- Trial of labor after cesarean 'TOLAC'
Correct answer: Repeat cesarean section at 39 weeks
Correct answer: Repeat cesarean section at 39 weeks. Explanation: Patients with a history of a classical cesarean section are recommended to have a repeat cesarean section due to the higher risk of uterine rupture associated with a trial of labor after a classical incision.
- In the presence of a non-reassuring fetal heart rate pattern, which intervention is least likely to be beneficial?
- Administering oxygen to the mother
- Initiating maternal repositioning
- Performing a fetal scalp stimulation
- Administering tocolytics
Correct answer: Administering tocolytics
Correct answer: Administering tocolytics. Explanation: Administering tocolytics, which relax the uterus and reduce contractions, is least likely to be beneficial in the context of a non-reassuring fetal heart rate pattern. The focus should be on interventions that improve fetal oxygenation and blood flow, not on decreasing uterine activity.
- During labor, a fetal scalp electrode reveals a fetal heart rate baseline variability of less than 5 bpm for 90 minutes. This finding indicates:
- Normal fetal well-being
- Fetal sleep cycle
- Moderate fetal hypoxia
- Severe fetal distress
Correct answer: Moderate fetal hypoxia
Correct answer: Moderate fetal hypoxia. Explanation: Reduced baseline variability for an extended period is indicative of moderate fetal hypoxia. It suggests that the fetal oxygen supply is compromised, warranting immediate evaluation and intervention.
- A laboring patient's cervix is dilated to 5 cm, and she has intense, painful contractions every 1-2 minutes. However, there is no cervical change after 2 hours. The next best step is to:
- Administer a tocolytic
- Perform an amniotomy
- Start an oxytocin infusion
- Recommend a cesarean delivery
Correct answer: Start an oxytocin infusion
Correct answer: Start an oxytocin infusion. Explanation: When labor progress stalls with adequate contractions, an oxytocin infusion may be initiated to enhance contraction strength and frequency, promoting cervical dilation and progress in labor.
- A patient in labor has a uterine scar from a previous myomectomy. Which of the following is the most appropriate monitoring strategy?
- Continuous external fetal monitoring
- Intermittent auscultation
- Continuous internal uterine pressure monitoring
- Periodic ultrasound examinations
Correct answer: Continuous internal uterine pressure monitoring
Correct answer: Continuous internal uterine pressure monitoring. Explanation: Continuous internal uterine pressure monitoring is crucial for patients with a uterine scar, as it provides precise information on contraction strength and frequency, aiding in the early detection of uterine rupture.
- During a vaginal delivery, the nurse notices a loop of umbilical cord protruding from the vagina. The nurse's immediate action should be to:
- Gently push the cord back into the uterus
- Call for help and prepare for an emergency cesarean section
- Apply gentle pressure to keep the presenting part off the cord
- Increase the IV fluid rate
Correct answer: Apply gentle pressure to keep the presenting part off the cord
Correct answer: Apply gentle pressure to keep the presenting part off the cord. Explanation: When cord prolapse occurs, the immediate action is to relieve pressure on the cord to prevent compression and maintain fetal oxygenation. This is achieved by applying gentle pressure to keep the presenting part off the cord until emergency cesarean delivery can be performed.
- For a patient experiencing a postpartum hemorrhage due to uterine atony, which medication is least likely to be effective?
- Oxytocin
- Misoprostol
- Methylergonovine
- Ibuprofen
Correct answer: Ibuprofen
Correct answer: Ibuprofen. Explanation: Ibuprofen is an NSAID used for pain relief and has no role in treating uterine atony. Oxytocin, Misoprostol, and Methylergonovine are uterotonics used to treat uterine atony by stimulating uterine contractions.
- When managing a patient with a suspected vasa previa, what is the most critical initial intervention?
- Administering steroids for fetal lung maturity
- Preparing for an immediate cesarean section
- Monitoring fetal heart rate patterns
- Initiating tocolytic therapy
Correct answer: Preparing for an immediate cesarean section
Correct answer: Preparing for an immediate cesarean section. Explanation: Vasa previa is a condition where fetal blood vessels cross the cervical os under the presenting part, posing a risk of vessel rupture and fetal exsanguination. The critical intervention is to prepare for an immediate cesarean section to prevent life-threatening fetal blood loss.
- A patient in labor has a sudden onset of intense abdominal pain, vaginal bleeding, and a tense, tender uterus. These symptoms most likely indicate:
- Placental abruption
- Uterine rupture
- Labor progression
- Placenta previa
Correct answer: Placental abruption
Correct answer: Placental abruption. Explanation: The combination of intense abdominal pain, vaginal bleeding, and a tense, tender uterus is indicative of placental abruption, where the placenta separates from the uterine wall before delivery, necessitating immediate medical intervention.
- In the case of a fetal bradycardia noted during labor, what is the first step in intrauterine resuscitative measures?
- Administering oxygen to the mother
- Changing the mother's position
- Administering IV fluids
- Starting tocolytic therapy
Correct answer: Changing the mother's position
Correct answer: Changing the mother's position. Explanation: The first step in addressing fetal bradycardia is to change the mother's position, typically to the left lateral position, to improve uteroplacental blood flow and fetal oxygenation.
- A laboring patient with a known low-lying placenta experiences sudden, painless, bright red vaginal bleeding. What is the most appropriate nursing action?
- Perform a sterile speculum examination
- Prepare the patient for an emergency cesarean section
- Administer IV fluids and monitor vital signs
- Place the patient in a Trendelenburg position
Correct answer: Prepare the patient for an emergency cesarean section
Correct answer: Prepare the patient for an emergency cesarean section. Explanation: In the case of painless, bright red vaginal bleeding with a known low-lying placenta, the priority is to prepare for an emergency cesarean section, as this may indicate placenta previa, where vaginal delivery could result in significant hemorrhage.
- A patient in the second stage of labor with an epidural reports a sudden, severe headache and blurred vision. The nurse should first:
- Check the patient's blood pressure
- Administer analgesics for headache
- Prepare for immediate delivery
- Position the patient flat and elevate legs
Correct answer: Check the patient's blood pressure
Correct answer: Check the patient's blood pressure. Explanation: A sudden, severe headache and blurred vision in a patient with an epidural may indicate an intracranial event or a spike in blood pressure, such as with preeclampsia. The first step is to check the patient's blood pressure to guide further interventions.
- When assessing a laboring patient, the nurse finds the fetal heart rate baseline to be 180 bpm with no decelerations. The most appropriate next step is to:
- Administer oxygen to the mother
- Initiate an amnioinfusion
- Prepare for immediate delivery
- Increase IV fluid administration
Correct answer: Administer oxygen to the mother
Correct answer: Administer oxygen to the mother. Explanation: A fetal heart rate baseline of 180 bpm indicates tachycardia, which can be a sign of fetal distress. Administering oxygen to the mother is a first-line intervention to enhance fetal oxygenation while further assessments and interventions are planned.
- In managing a patient with suspected chorioamnionitis, which intervention is not typically recommended?
- Administering antibiotics
- Monitoring maternal and fetal vitals
- Immediate cesarean delivery
- Administering antipyretics
Correct answer: Immediate cesarean delivery
Correct answer: Immediate cesarean delivery. Explanation: While chorioamnionitis requires prompt treatment with antibiotics and monitoring of maternal and fetal vitals, immediate cesarean delivery is not typically the first-line response unless there are other obstetric indications.
- A patient in labor is noted to have a uterine tachysystole with a pattern of more than five contractions in 10 minutes over two consecutive 10-minute windows. The initial nursing intervention is to:
- Increase the oxytocin rate
- Administer a tocolytic
- Discontinue oxytocin if being administered
- Perform fetal scalp stimulation
Correct answer: Discontinue oxytocin if being administered
Correct answer: Discontinue oxytocin if being administered. Explanation: Uterine tachysystole can compromise uteroplacental blood flow. If the patient is receiving oxytocin, the initial step is to discontinue or reduce the oxytocin infusion to decrease the frequency of contractions.
- A laboring patient's fetal monitoring indicates a sinusoidal heart rate pattern. The nurse understands this pattern is most commonly associated with:
- Fetal anemia
- Cord compression
- Maternal dehydration
- Uterine hyperstimulation
Correct answer: Fetal anemia
Correct answer: Fetal anemia. Explanation: A sinusoidal heart rate pattern is a smooth, wavelike undulating pattern in fetal heart rate baseline and is most commonly associated with fetal anemia or hypoxia.
- In a patient experiencing a prolonged deceleration during labor, the nurse's priority intervention is to:
- Prepare for a vaginal examination
- Change the patient's position
- Increase the rate of IV fluids
- Administer oxygen to the mother
Correct answer: Change the patient's position
Correct answer: Change the patient's position. Explanation: The first intervention for a prolonged deceleration is to change the patient's position to improve fetal oxygenation and circulation, potentially alleviating the deceleration.
- A patient with a known opioid dependency is in labor. The nurse should be particularly vigilant for:
- Delayed labor progression
- Neonatal abstinence syndrome
- Excessive fetal movements
- Uterine hyperstimulation
Correct answer: Neonatal abstinence syndrome
Correct answer: Neonatal abstinence syndrome. Explanation: In a patient with opioid dependency, the nurse should be vigilant for neonatal abstinence syndrome, a condition where the newborn experiences withdrawal symptoms post-delivery.
- When caring for a patient with polyhydramnios, the nurse is aware that there is an increased risk of:
- Fetal bradycardia
- Premature rupture of membranes
- Uterine atony
- Intrauterine growth restriction
Correct answer: Premature rupture of membranes
Correct answer: Premature rupture of membranes. Explanation: Polyhydramnios, an excessive accumulation of amniotic fluid, increases the risk of premature rupture of membranes due to the increased uterine distension and pressure.
- During labor induction with misoprostol, the nurse should closely monitor for:
- Hypertension
- Uterine hyperstimulation
- Decreased fetal movements
- Maternal hyperglycemia
Correct answer: Uterine hyperstimulation
Correct answer: Uterine hyperstimulation. Explanation: When inducing labor with misoprostol, it is crucial to monitor for uterine hyperstimulation, a condition that can compromise fetal oxygenation and blood supply.
- A nurse observes variable decelerations on the fetal monitor. The first intervention should be to:
- Administer oxygen to the mother
- Perform a vaginal examination
- Change the mother's position
- Increase IV fluid rate
Correct answer: Change the mother's position
Correct answer: Change the mother's position. Explanation: Variable decelerations are often due to cord compression. Changing the mother's position can alleviate pressure on the umbilical cord and improve fetal oxygenation.
- A newborn is diagnosed with transient tachypnea. Which of the following is the most appropriate initial nursing intervention?
- Administer 100% oxygen via hood.
- Start intravenous fluids at a maintenance rate.
- Place the newborn on the mother's chest for skin-to-skin contact.
- Monitor respiratory rate and oxygen saturation every 15 minutes.
Correct answer: Monitor respiratory rate and oxygen saturation every 15 minutes.
Correct answer: Monitor respiratory rate and oxygen saturation every 15 minutes. Explanation: The initial nursing intervention for a newborn with transient tachypnea is to monitor the respiratory rate and oxygen saturation closely to assess the baby's respiratory status and need for further intervention. This monitoring helps in identifying the need for additional treatments like oxygen therapy or other supportive care.
- In the context of postpartum hemorrhage, which medication is considered first-line treatment to contract the uterus?
- Misoprostol
- Methylergonovine
- Oxytocin
- Carboprost tromethamine
Correct answer: Oxytocin
Correct answer: Oxytocin. Explanation: Oxytocin is the first-line medication for the treatment of postpartum hemorrhage as it promotes uterine contractions, helping to compress the blood vessels in the uterine lining and reduce blood loss.
- A postpartum woman exhibits signs of preeclampsia. Which symptom is most critical and requires immediate intervention?
- Systolic blood pressure of 150 mm Hg
- Proteinuria
- Persistent headache unrelieved by medication
- Swelling of the hands and face
Correct answer: Persistent headache unrelieved by medication
Correct answer: Persistent headache unrelieved by medication. Explanation: A persistent headache unrelieved by medication in a postpartum woman with preeclampsia is critical as it may indicate central nervous system involvement and an increased risk of eclampsia. Immediate evaluation and intervention are necessary to prevent complications.
- In evaluating a newborn's adaptation to extrauterine life, which of the following findings would be a cause for concern?
- Acrocyanosis within the first 24 hours after birth
- Heart rate of 160 bpm during sleep
- Respiratory rate of 50 breaths per minute
- Periodic breathing with short pauses less than 5 seconds
Correct answer: Heart rate of 160 bpm during sleep
Correct answer: Heart rate of 160 bpm during sleep. Explanation: A heart rate of 160 bpm during sleep is concerning for a newborn as it may indicate tachycardia, which could be a sign of underlying issues such as infection, anemia, or cardiac problems that require further investigation.
- A nurse is caring for a postpartum client who had a vaginal delivery with a second-degree laceration. What is the priority nursing assessment to monitor for signs of infection in the perineal area?
- Assess the episiotomy site for edema and ecchymosis.
- Monitor the color, amount, and odor of lochia.
- Check the perineal area for pain and warmth.
- Evaluate the client's temperature every 4 hours.
Correct answer: Check the perineal area for pain and warmth.
Correct answer: Check the perineal area for pain and warmth. Explanation: Localized perineal pain and warmth are the most specific early signs of a wound infection at the laceration site, so direct inspection and palpation of the perineum (assessing the REEDA criteria — redness, edema, ecchymosis, discharge, and approximation) is the priority assessment. Monitoring lochia and temperature is useful but less specific to a perineal wound infection, and some edema and ecchymosis are expected early after a repair.
- Which intervention is most appropriate for a newborn diagnosed with hypoglycemia?
- Immediate feeding with dextrose gel orally
- Administration of intravenous glucose
- Skin-to-skin contact and breastfeeding initiation
- Frequent monitoring of blood glucose levels without intervention
Correct answer: Immediate feeding with dextrose gel orally
Correct answer: Immediate feeding with dextrose gel orally. Explanation: Immediate feeding with dextrose gel orally is an effective and rapid intervention for a newborn with hypoglycemia, providing a quick source of glucose to stabilize blood sugar levels.
- When assessing a postpartum client, the nurse notes that the uterus is boggy and deviated to the right side. The initial nursing action should be to:
- Administer prescribed analgesics.
- Encourage the client to empty her bladder.
- Perform fundal massage.
- Check the client's blood pressure.
Correct answer: Encourage the client to empty her bladder.
Correct answer: Encourage the client to empty her bladder. Explanation: A boggy uterus deviated to the right side often indicates a full bladder, which can interfere with uterine contraction. The initial step should be to encourage the client to empty her bladder to allow the uterus to contract properly.
- A newborn's initial Apgar score is 6. What is the priority nursing intervention?
- Start chest compressions.
- Administer oxygen via nasal cannula.
- Perform tactile stimulation.
- Prepare for intubation.
Correct answer: Perform tactile stimulation.
Correct answer: Perform tactile stimulation. Explanation: Tactile stimulation is the priority nursing intervention for a newborn with an Apgar score of 6, as it can help stimulate breathing and improve the baby's overall condition without the need for more invasive procedures.
- In the case of a postpartum client with a temperature of 38.5°C (101.3°F) on the second postpartum day, what is the most likely diagnosis?
- Endometritis
- Urinary tract infection
- Mastitis
- Atelectasis
Correct answer: Endometritis
Correct answer: Endometritis. Explanation: Endometritis is a common cause of fever on the second postpartum day, characterized by an infection of the uterine lining often due to bacteria introduced during delivery.
- A newborn exhibits signs of jaundice at 24 hours of life. What is the most appropriate initial nursing action?
- Prepare the newborn for an exchange transfusion.
- Initiate phototherapy.
- Obtain a bilirubin level.
- Increase the frequency of feeding.
Correct answer: Obtain a bilirubin level.
Correct answer: Obtain a bilirubin level. Explanation: Obtaining a bilirubin level is the most appropriate initial action to quantify the severity of jaundice and guide further treatment decisions, such as the need for phototherapy or other interventions.
- When monitoring a postpartum client who received magnesium sulfate for preeclampsia, which finding would necessitate immediate intervention?
- Urinary output of 25 mL/hour
- Respiratory rate of 14 breaths per minute
- Deep tendon reflexes rated 2+
- Systolic blood pressure of 140 mm Hg
Correct answer: Urinary output of 25 mL/hour
Correct answer: Urinary output of 25 mL/hour. Explanation: A urinary output of less than 30 mL/hour in a postpartum client on magnesium sulfate therapy could indicate magnesium toxicity or renal impairment, necessitating immediate intervention to prevent complications.
- A newborn is exhibiting signs of neonatal abstinence syndrome (NAS). Which of the following is the most appropriate initial nursing action?
- Administer naloxone immediately.
- Initiate swaddling and nonnutritive sucking.
- Start the newborn on oral morphine.
- Place the newborn in a brightly lit room.
Correct answer: Initiate swaddling and nonnutritive sucking.
Correct answer: Initiate swaddling and nonnutritive sucking. Explanation: Swaddling and nonnutritive sucking are supportive care measures that can comfort a newborn showing signs of NAS, addressing the baby's need for soothing and reducing stimuli before considering pharmacological interventions.
- For a newborn diagnosed with polycythemia, what is the most appropriate initial nursing intervention?
- Initiate partial exchange transfusion.
- Monitor for signs of hypoglycemia.
- Start phototherapy.
- Increase fluid intake.
Correct answer: Monitor for signs of hypoglycemia.
Correct answer: Monitor for signs of hypoglycemia. Explanation: Newborns with polycythemia are at risk for hypoglycemia due to increased red blood cell breakdown. Monitoring for signs of hypoglycemia is crucial for timely intervention and management.
- A postpartum client is experiencing postpartum blues. Which of the following symptoms would indicate a progression to postpartum depression and require further evaluation?
- Mood swings occurring within the first two weeks postpartum
- Feelings of sadness that improve with rest
- Crying spells accompanied by sleep disturbances and loss of appetite
- Brief periods of anxiety that resolve with support
Correct answer: Crying spells accompanied by sleep disturbances and loss of appetite
Correct answer: Crying spells accompanied by sleep disturbances and loss of appetite. Explanation: While postpartum blues are common, crying spells accompanied by sleep disturbances and a loss of appetite could indicate a progression to postpartum depression, necessitating further evaluation and potential intervention.
- In the context of neonatal care, what is the most significant risk associated with a maternal infection of group B Streptococcus (GBS) untreated during labor?
- Neonatal hypoglycemia
- Developmental delays
- Neonatal sepsis
- Transient tachypnea of the newborn
Correct answer: Neonatal sepsis
Correct answer: Neonatal sepsis. Explanation: The most significant risk for the newborn from an untreated maternal GBS infection during labor is neonatal sepsis, a severe infection that can have life-threatening consequences.
- Which intervention is critical for a newborn with a confirmed diagnosis of galactosemia?
- Start a lactose-free formula immediately.
- Initiate breastfeeding as the primary nutrition source.
- Monitor for signs of jaundice.
- Administer intravenous glucose.
Correct answer: Start a lactose-free formula immediately.
Correct answer: Start a lactose-free formula immediately. Explanation: For a newborn with galactosemia, it's crucial to eliminate galactose from the diet, necessitating the immediate initiation of a lactose-free formula to prevent the accumulation of toxic substances.
- When caring for a postpartum client with cardiomyopathy, which symptom should prompt immediate action by the nurse?
- Fatigue
- Crackles heard at lung bases
- An increase in diastolic blood pressure by 10 mm Hg
- Swelling in the ankles
Correct answer: Crackles heard at lung bases
Correct answer: Crackles heard at lung bases. Explanation: Crackles at the lung bases in a postpartum client with cardiomyopathy may indicate pulmonary edema, a serious complication requiring immediate intervention to prevent cardiac decompensation.
- For a newborn exhibiting signs of meconium aspiration syndrome, what is the priority nursing action?
- Start oral feedings to stimulate bowel movement.
- Prepare for gavage feeding.
- Perform endotracheal suctioning if meconium-stained amniotic fluid was present during delivery.
- Administer surfactant therapy immediately.
Correct answer: Perform endotracheal suctioning if meconium-stained amniotic fluid was present during delivery.
Correct answer: Perform endotracheal suctioning if meconium-stained amniotic fluid was present during delivery. Explanation: Current NRP guidance no longer recommends ROUTINE intrapartum or delivery-room suctioning of a vigorous (or even non-vigorous) meconium-stained newborn — initial steps and positive-pressure ventilation come first. However, in a newborn already showing signs of meconium aspiration syndrome whose airway is obstructed and who is not responding to PPV, endotracheal intubation and tracheal suctioning to clear the obstruction are the priority airway intervention. The other options (oral or gavage feeding, immediate surfactant) do not address the acutely compromised airway.
- When assessing a postpartum client for venous thromboembolism (VTE), which of the following is a critical sign?
- Bilateral calf pain
- Unilateral calf redness, warmth, and swelling
- Symmetrical ankle edema
- Pain in both thighs
Correct answer: Unilateral calf redness, warmth, and swelling
Correct answer: Unilateral calf redness, warmth, and swelling. Explanation: Unilateral calf redness, warmth, and swelling are critical signs of VTE in a postpartum client, indicating a possible deep vein thrombosis that requires immediate investigation and management.
- In the context of inpatient obstetric nursing, which of the following best describes the principle of autonomy?
- Providing care based on the nurse's expertise
- Respecting the patient's rights to make their own healthcare decisions
- Ensuring the patient's welfare is the top priority
- Promoting fair treatment of all patients
Correct answer: Respecting the patient's rights to make their own healthcare decisions
Correct answer: Respecting the patient's rights to make their own healthcare decisions. Explanation: Autonomy in healthcare refers to the right of the patient to make their own decisions regarding their care. It's crucial for nurses to respect and support these decisions, even if they differ from the nurse's personal or professional opinion.
- When addressing a conflict between two staff members in the obstetric unit, what is the most appropriate initial step according to conflict resolution best practices?
- Escalate the issue to higher management immediately
- Encourage the staff members to resolve the issue among themselves first
- Implement disciplinary action to prevent further occurrences
- Ignore the conflict and allow it to resolve naturally
Correct answer: Encourage the staff members to resolve the issue among themselves first
Correct answer: Encourage the staff members to resolve the issue among themselves first. Explanation: Encouraging staff members to resolve the issue among themselves promotes communication and problem-solving skills within the team. It's a recommended first step in conflict resolution, allowing for direct communication and fostering a collaborative environment.
- Which ethical principle is primarily concerned with the distribution of resources and ensuring fair treatment for all patients?
- Beneficence
- Nonmaleficence
- Justice
- Fidelity
Correct answer: Justice
Correct answer: Justice. Explanation: The principle of justice in healthcare emphasizes fairness and equality in the distribution of resources, ensuring that all patients have equal access to care and are treated equitably.
- In the context of obstetric nursing, informed consent is crucial before any procedure. What is the nurse's role in this process?
- To decide what is best for the patient and obtain the signature
- To provide detailed information about the procedure and its risks and benefits
- To ensure that the consent form is signed at any cost
- To delegate the responsibility of obtaining consent to the junior staff
Correct answer: To provide detailed information about the procedure and its risks and benefits
Correct answer: To provide detailed information about the procedure and its risks and benefits. Explanation: The nurse's role in informed consent is to ensure the patient understands the procedure, along with its potential risks and benefits, enabling them to make an informed decision. While obtaining the signature is part of the process, the focus is on patient understanding and autonomy.
- In the context of professional accountability, which action best demonstrates a nurse's commitment to professional development?
- Attending mandatory training sessions only
- Regularly reflecting on one's practice and seeking feedback
- Avoiding involvement in professional organizations
- Focusing solely on clinical skills while ignoring new research
Correct answer: Regularly reflecting on one's practice and seeking feedback
Correct answer: Regularly reflecting on one's practice and seeking feedback. Explanation: Regular reflection on practice and actively seeking feedback are key components of professional development, demonstrating a commitment to continuous learning and improvement in one's role.
- When dealing with an ethical dilemma in inpatient obstetric nursing, which of the following is the most appropriate first step?
- Take immediate action based on personal beliefs
- Consult the hospital's ethics committee for guidance
- Discuss the issue with friends and family for advice
- Follow the majority opinion of colleagues
Correct answer: Consult the hospital's ethics committee for guidance
Correct answer: Consult the hospital's ethics committee for guidance. Explanation: Consulting the hospital's ethics committee provides a structured approach to resolving ethical dilemmas, ensuring that decisions are made based on a thorough understanding of ethical principles and the specific context of the situation.
- Which of the following actions by an inpatient obstetric nurse best demonstrates adherence to the principle of nonmaleficence?
- Providing treatments based solely on the latest technology
- Ensuring all interventions are evidence-based and in the patient's best interest
- Focusing on the most cost-effective treatments
- Offering the same treatment options to all patients, regardless of their individual needs
Correct answer: Ensuring all interventions are evidence-based and in the patient's best interest
Correct answer: Ensuring all interventions are evidence-based and in the patient's best interest. Explanation: Nonmaleficence is the principle of "do no harm." By ensuring that interventions are evidence-based and truly in the patient's best interest, the nurse upholds this ethical principle, prioritizing the patient's wellbeing.
- A nurse in the obstetric unit is faced with a situation where a patient's cultural beliefs conflict with the recommended medical treatment. What is the most appropriate response?
- Dismiss the patient's beliefs as irrelevant to care
- Force the patient to comply with the medical treatment
- Seek to understand the patient's beliefs and find a mutually acceptable solution
- Transfer the patient to another facility
Correct answer: Seek to understand the patient's beliefs and find a mutually acceptable solution
Correct answer: Seek to understand the patient's beliefs and find a mutually acceptable solution. Explanation: Understanding and respecting the patient's cultural beliefs while seeking a solution that aligns with medical best practices demonstrates cultural competence and ethical care, honoring the patient's values while providing safe medical treatment.
- How should a nurse in an obstetric unit approach the use of social media in relation to their profession?
- Share detailed patient stories to educate the public
- Use social media to discuss specific patient cases with colleagues
- Maintain patient confidentiality and professionalism in all online interactions
- Avoid all forms of social media to prevent potential ethical issues
Correct answer: Maintain patient confidentiality and professionalism in all online interactions
Correct answer: Maintain patient confidentiality and professionalism in all online interactions. Explanation: Maintaining patient confidentiality and professionalism on social media is crucial to uphold the ethical standards of nursing, ensuring that patient information is protected and that the nurse's online presence reflects the integrity of the profession.
- When implementing evidence-based practices in the obstetric unit, what is a key consideration to ensure these practices are effectively integrated into patient care?
- Adopting practices based solely on their popularity
- Ensuring practices are based on the latest celebrity endorsements
- Integrating practices that are supported by strong research evidence
- Following practices that are easiest to implement
Correct answer: Integrating practices that are supported by strong research evidence
Correct answer: Integrating practices that are supported by strong research evidence. Explanation: The cornerstone of evidence-based practice is the integration of clinical expertise with the best available research evidence. Adopting practices supported by strong evidence ensures that patient care is informed, effective, and up-to-date.
- A nurse is caring for a patient in labor with suspected intrauterine infection. Which of the following findings would be least likely to be associated with this condition?
- Maternal fever
- Fetal tachycardia
- Clear amniotic fluid
- Maternal leukocytosis
Correct answer: Clear amniotic fluid
Correct answer: Clear amniotic fluid. Explanation: Intrauterine infection is often associated with maternal fever, fetal tachycardia, and maternal leukocytosis. Clear amniotic fluid is typically not a sign of infection; cloudy, foul-smelling, or colored fluid would be more indicative of an infection.
- During labor, a patient's water breaks, and the amniotic fluid is noted to have a greenish tint. The nurse recognizes this as a sign of:
- Acute fetal distress
- Maternal infection
- Meconium-stained amniotic fluid
- Uterine rupture
Correct answer: Meconium-stained amniotic fluid
Correct answer: Meconium-stained amniotic fluid. Explanation: Meconium-stained amniotic fluid, which is greenish in color, can be an indicator of fetal distress, but it is not always associated with an adverse outcome. It does necessitate closer monitoring of the fetus and preparation for potential neonatal resuscitation.
- In a patient with gestational hypertension developing severe features, the nurse anticipates the administration of which medication to prevent seizures?
- Oxytocin
- Methylergonovine
- Magnesium sulfate
- Ibuprofen
Correct answer: Magnesium sulfate
Correct answer: Magnesium sulfate. Explanation: Magnesium sulfate is administered to patients with severe gestational hypertension or preeclampsia with severe features to prevent eclamptic seizures, a serious complication that can occur during labor.
- A nurse is assessing a patient in labor and notes a significant drop in blood pressure following an epidural analgesia. The nurse's immediate response should be to:
- Place the patient in a supine position
- Administer an antihypertensive medication
- Increase intravenous fluid rate
- Check for signs of an allergic reaction
Correct answer: Increase intravenous fluid rate
Correct answer: Increase intravenous fluid rate. Explanation: Hypotension is a common side effect of epidural analgesia due to vasodilation. The immediate nursing intervention is to increase the rate of intravenous fluids to support blood pressure and place the patient in a side-lying position to improve uteroplacental perfusion, not a supine position which can exacerbate hypotension.
- When monitoring a patient for uterine rupture, which of the following signs would the nurse consider critical and requiring immediate intervention?
- Gradual decrease in contraction strength
- Sudden cessation of contractions
- Slow progressive dilation of the cervix
- Steady increase in maternal heart rate
Correct answer: Sudden cessation of contractions
Correct answer: Sudden cessation of contractions. Explanation: A sudden cessation of contractions could indicate a uterine rupture, a serious complication where the integrity of the uterine wall is compromised. This condition requires immediate medical intervention to prevent severe maternal and fetal morbidity or mortality.
- According to current ACOG criteria, which single blood pressure reading meets the definition of severe-range hypertension in pregnancy and warrants treatment within 30 to 60 minutes?
- Systolic 150 mm Hg or diastolic 95 mm Hg
- Systolic 138 mm Hg or diastolic 88 mm Hg
- Systolic 142 mm Hg or diastolic 92 mm Hg
- Systolic 160 mm Hg or diastolic 110 mm Hg
Correct answer: Systolic 160 mm Hg or diastolic 110 mm Hg
Severe-range hypertension is a systolic of 160 mm Hg or higher or a diastolic of 110 mm Hg or higher, confirmed within 15 minutes. A reading at or above this threshold is an acute emergency requiring rapid-acting antihypertensive therapy within 30 to 60 minutes to reduce stroke risk. Readings of 140 to 159 over 90 to 109 define non-severe (mild-range) hypertension, which does not by itself trigger acute IV therapy.
- A patient at 33 weeks has a blood pressure of 148/96 mm Hg on two readings four hours apart, no proteinuria, normal platelets, and normal liver and renal labs. Which diagnosis best fits this presentation?
- Preeclampsia with severe features
- Preeclampsia without severe features
- Gestational hypertension
- Chronic hypertension
Correct answer: Gestational hypertension
Gestational hypertension is new-onset blood pressure of 140/90 or higher after 20 weeks without proteinuria and without any sign of end-organ involvement. Because there is no proteinuria, no thrombocytopenia, and no liver, renal, or neurologic findings, the picture does not meet criteria for preeclampsia. Chronic hypertension would require elevation predating pregnancy or before 20 weeks.
- A nurse caring for a patient with gestational hypertension understands that the key feature distinguishing it from preeclampsia is that gestational hypertension is characterized by:
- Platelet count below 100,000 per microliter
- Proteinuria greater than 300 mg in 24 hours
- Blood pressure that normalizes by 20 weeks
- Elevated blood pressure with NO proteinuria and NO end-organ dysfunction
Correct answer: Elevated blood pressure with NO proteinuria and NO end-organ dysfunction
Gestational hypertension is elevated blood pressure after 20 weeks with no proteinuria and no signs of end-organ dysfunction. The moment proteinuria or any severe feature such as thrombocytopenia, elevated liver enzymes, renal insufficiency, pulmonary edema, or new neurologic or visual symptoms appears, the diagnosis becomes preeclampsia. Up to a quarter of patients with gestational hypertension progress to preeclampsia, so ongoing surveillance is essential.
- A patient on a magnesium sulfate infusion for severe preeclampsia is found to have absent patellar reflexes. This finding most likely indicates:
- Early magnesium toxicity warranting the infusion be stopped
- A therapeutic magnesium level requiring no change
- Hypocalcemia from the infusion
- Impending eclampsia requiring a higher infusion rate
Correct answer: Early magnesium toxicity warranting the infusion be stopped
Loss of deep tendon reflexes is the earliest reliable clinical sign of magnesium toxicity, typically appearing as serum levels reach roughly 9 to 12 mg/dL, above the therapeutic range. The infusion should be stopped and the patient assessed before respiratory depression (which follows at higher levels) develops. Reflexes are monitored precisely because they warn of toxicity before the more dangerous cardiopulmonary effects.
- A patient receiving magnesium sulfate develops a respiratory rate of 9 breaths per minute and absent reflexes. After stopping the infusion, which medication should the nurse anticipate administering as the antidote?
- Flumazenil
- Naloxone
- Calcium gluconate
- Sodium bicarbonate
Correct answer: Calcium gluconate
Calcium gluconate is the antidote for magnesium sulfate toxicity, usually given as 1 gram IV over several minutes. Calcium directly antagonizes magnesium at the neuromuscular junction and rapidly reverses respiratory depression and other life-threatening effects. Naloxone and flumazenil reverse opioids and benzodiazepines respectively and have no effect on magnesium.
- A nurse prepares calcium gluconate at the bedside of a patient receiving magnesium sulfate. The clinical rationale for keeping this drug readily available is that calcium:
- Binds magnesium in the bloodstream to form an inert complex
- Stimulates the respiratory center directly
- Increases renal excretion of magnesium
- Competitively antagonizes magnesium at the neuromuscular junction
Correct answer: Competitively antagonizes magnesium at the neuromuscular junction
Calcium gluconate works by competitively antagonizing magnesium at the neuromuscular junction, reversing the muscle and respiratory depression caused by excess magnesium. It does not chelate magnesium or accelerate its renal clearance, and it does not act on the respiratory center. Its rapid action at the neuromuscular site is why it is the rescue drug kept at the bedside during any magnesium infusion.
- A patient with preeclampsia has a seizure. After ensuring airway, breathing, and positioning, the priority pharmacologic intervention to control and prevent further eclamptic seizures is:
- Magnesium sulfate
- Phenytoin loading dose
- Levetiracetam infusion
- Lorazepam IV push
Correct answer: Magnesium sulfate
Magnesium sulfate is the first-line drug for both treating and preventing eclamptic seizures and is superior to phenytoin and benzodiazepines for this indication. A loading dose followed by a maintenance infusion is given, and therapy continues for at least 24 hours after the seizure or after delivery. Benzodiazepines may be used only for refractory seizures that do not respond to magnesium.
- After an eclamptic seizure is controlled with magnesium sulfate and the patient is stabilized, the definitive treatment for eclampsia is:
- Continued bed rest until 37 weeks
- Transfer to a long-term observation unit
- Escalation to combination anticonvulsants
- Delivery of the fetus and placenta
Correct answer: Delivery of the fetus and placenta
Delivery of the fetus and placenta is the only definitive cure for eclampsia and preeclampsia, because the placenta drives the disease process. Magnesium controls seizures and antihypertensives control blood pressure, but these are stabilizing measures only. Once the mother is stabilized, delivery is pursued regardless of gestational age.
- Which laboratory triad is consistent with HELLP syndrome?
- Hyperglycemia, elevated lactate, and low potassium
- Hypofibrinogenemia, elevated creatinine, and low albumin
- Hemoconcentration, elevated lipase, and leukocytosis
- Hemolysis, elevated liver enzymes, and low platelets
Correct answer: Hemolysis, elevated liver enzymes, and low platelets
HELLP stands for Hemolysis, Elevated Liver enzymes, and Low Platelets, a severe variant of preeclampsia. The Tennessee criteria define it as LDH above 600 U/L, AST above 70 U/L, and platelets below 100,000 per microliter. The other lab patterns describe pancreatitis, metabolic, or other syndromes that are not HELLP.
- A 36-week patient reports right upper quadrant and epigastric pain, nausea, and malaise. Her platelets are 78,000 per microliter, AST is 220 U/L, and LDH is 900 U/L. These findings are most consistent with:
- HELLP syndrome
- Acute cholecystitis
- Gastroesophageal reflux
- Intrahepatic cholestasis of pregnancy
Correct answer: HELLP syndrome
HELLP syndrome classically presents with right upper quadrant or epigastric pain plus the laboratory triad of hemolysis (LDH above 600), elevated liver enzymes (AST above 70), and platelets below 100,000. The right upper quadrant pain reflects hepatic involvement and distension of the liver capsule. Cholestasis of pregnancy causes pruritus with elevated bile acids but not thrombocytopenia or this degree of transaminase and LDH elevation.
- A patient at 30 weeks meets criteria for preeclampsia with severe features. In addition to severe-range blood pressure, which finding independently qualifies as a severe feature?
- 2-pound weight gain in one week
- Blood pressure of 144/92 mm Hg
- Trace pedal edema
- Platelet count of 85,000 per microliter
Correct answer: Platelet count of 85,000 per microliter
A platelet count below 100,000 per microliter (thrombocytopenia) is one of the severe features of preeclampsia and qualifies on its own. Other severe features include severe-range blood pressure, impaired liver function, renal insufficiency, pulmonary edema, and new cerebral or visual symptoms. Edema and weight gain are not diagnostic criteria, and 144/92 is non-severe-range hypertension.
- Which new symptom in a patient with preeclampsia is considered a severe feature signaling cerebral involvement and increased risk of eclampsia?
- Occasional heartburn after meals
- Persistent severe headache unresponsive to medication
- Nausea in the first trimester
- Mild dependent ankle edema
Correct answer: Persistent severe headache unresponsive to medication
A persistent, severe headache that does not respond to medication is a cerebral severe feature of preeclampsia and signals heightened risk of progression to eclampsia. New visual disturbances such as scotomata or blurred vision belong to the same category. These central nervous system findings prompt urgent evaluation and magnesium sulfate for seizure prophylaxis.
- A 27-week patient is admitted with preeclampsia with severe features. The primary purpose of administering betamethasone in this situation is to:
- Accelerate fetal lung maturity
- Reduce maternal proteinuria
- Prevent maternal seizures
- Lower the maternal blood pressure
Correct answer: Accelerate fetal lung maturity
Betamethasone is an antenatal corticosteroid given to accelerate fetal lung maturity and reduce the risk of neonatal respiratory distress syndrome, intraventricular hemorrhage, and necrotizing enterocolitis when preterm birth is anticipated. It has no effect on maternal blood pressure or proteinuria, and seizure prophylaxis is provided by magnesium sulfate. A single course is recommended between viability and 34 weeks.
- A patient at 31 weeks is at risk for imminent preterm birth. The standard antenatal corticosteroid course of betamethasone for fetal lung maturity is administered as:
- A single 12-mg dose given once
- Two 6-mg doses given 6 hours apart
- A continuous 48-hour infusion
- Two 12-mg doses given 24 hours apart
Correct answer: Two 12-mg doses given 24 hours apart
The standard betamethasone course is two intramuscular doses of 12 mg given 24 hours apart, providing maximal benefit when birth occurs at least 24 hours after the first dose. Dexamethasone is an alternative given in four doses of 6 mg 12 hours apart. The goal is to reduce neonatal respiratory and other prematurity complications.
- A patient presents at 30 weeks reporting a gush of clear fluid from the vagina followed by continued leaking, with no contractions. Sterile speculum exam shows pooling that is nitrazine-positive and ferns on a slide. The most likely diagnosis is:
- Bacterial vaginosis discharge
- Urinary incontinence
- Preterm premature rupture of membranes
- Loss of the mucus plug
Correct answer: Preterm premature rupture of membranes
Preterm premature rupture of membranes (PPROM) is rupture of the amniotic membranes before 37 weeks and before the onset of labor. The clinical hallmarks are visible pooling of fluid, a positive nitrazine test from alkaline amniotic fluid, and ferning of dried fluid under the microscope. Loss of the mucus plug and incontinence do not produce these findings.
- A patient at 30 weeks with confirmed PPROM has no signs of infection, labor, or fetal compromise. The recommended management is generally:
- Immediate cesarean delivery
- Outpatient observation with weekly visits
- Expectant management with hospitalization, latency antibiotics, and corticosteroids
- Immediate induction of labor
Correct answer: Expectant management with hospitalization, latency antibiotics, and corticosteroids
PPROM before 34 weeks without contraindications is managed expectantly with inpatient monitoring to prolong the pregnancy, along with latency antibiotics to extend the latency period and reduce infection, and a course of antenatal corticosteroids for fetal lung maturity. Delivery is reserved for infection, abruption, fetal compromise, or reaching the gestational threshold. Routine immediate delivery is not indicated when the fetus is stable and preterm.
- The primary rationale for administering latency antibiotics to a patient with PPROM at 29 weeks is to:
- Stop uterine contractions
- Treat an already established maternal sepsis
- Prolong the latency period and reduce intraamniotic infection
- Mature the fetal lungs more rapidly
Correct answer: Prolong the latency period and reduce intraamniotic infection
Latency antibiotics in PPROM prolong the interval between rupture and delivery and reduce the incidence of intraamniotic infection and neonatal morbidity. They are prophylactic, not treatment of established sepsis, which would prompt delivery. Lung maturity is addressed by corticosteroids and contractions by tocolytics, not by antibiotics.
- A laboring patient at 38 weeks has a maternal temperature of 39.0 C, maternal tachycardia, fetal tachycardia of 175 bpm, and purulent-appearing amniotic fluid. These findings are most consistent with:
- Amniotic fluid embolism
- Placental abruption
- Chorioamnionitis (intraamniotic infection)
- Magnesium toxicity
Correct answer: Chorioamnionitis (intraamniotic infection)
Chorioamnionitis, now often termed intraamniotic infection or Triple I, is suggested by maternal fever plus supporting signs such as maternal and fetal tachycardia, uterine tenderness, and purulent or foul amniotic fluid. Management includes broad-spectrum antibiotics and proceeding toward delivery. Abruption presents with bleeding and a tense uterus, and amniotic fluid embolism presents with sudden cardiopulmonary collapse, not fever and purulent fluid.
- Which combination of clinical findings would most strongly support a diagnosis of chorioamnionitis?
- Maternal fever plus fetal tachycardia and foul-smelling amniotic fluid
- Sudden hypotension and hypoxia after rupture of membranes
- Painless bright red bleeding with a soft, nontender uterus
- Pruritus of the palms and soles with elevated bile acids
Correct answer: Maternal fever plus fetal tachycardia and foul-smelling amniotic fluid
Chorioamnionitis is supported by maternal fever combined with co-factors such as fetal tachycardia, maternal tachycardia, uterine fundal tenderness, maternal leukocytosis, and purulent or foul-smelling amniotic fluid. Painless bleeding suggests previa, sudden hypotension with hypoxia suggests amniotic fluid embolism, and pruritus with elevated bile acids suggests cholestasis. The infection picture is defined by fever plus inflammatory and fetal signs.
- A nurse compares placenta previa and placental abruption. Which statement correctly distinguishes them?
- Previa typically causes painless bright red bleeding; abruption causes painful bleeding often with a tense, tender uterus
- Previa typically causes painful bleeding with a rigid uterus; abruption causes painless bleeding
- Both present identically and can only be told apart by lab tests
- Abruption always produces heavier visible bleeding than previa
Correct answer: Previa typically causes painless bright red bleeding; abruption causes painful bleeding often with a tense, tender uterus
Placenta previa classically causes painless, bright red vaginal bleeding because the placenta covers or lies near the cervical os. Placental abruption causes painful bleeding, frequently with a tense, tender, irritable uterus, because the placenta separates prematurely from the uterine wall. Abruption bleeding may be partly or fully concealed, so visible blood does not reliably reflect severity.
- A patient at 32 weeks presents with sudden onset of dark vaginal bleeding, constant abdominal pain, and a board-like, tender uterus. Which sign set is most characteristic of placental abruption?
- Painless bright red bleeding with a relaxed, nontender uterus
- Painful bleeding with uterine tenderness, hypertonus, and frequent contractions
- Bleeding only after digital cervical examination
- Intermittent painless spotting with no uterine activity
Correct answer: Painful bleeding with uterine tenderness, hypertonus, and frequent contractions
Placental abruption signs include painful vaginal bleeding, a tender and often rigid or hypertonic uterus, frequent contractions, and signs of fetal compromise. The bleeding may be dark and can be partly concealed behind the placenta. A painless, soft uterus with bright red bleeding points instead to placenta previa.
- A patient at 34 weeks with chronic hypertension and cocaine use presents with abrupt severe abdominal pain and a category III tracing. The nurse recognizes that the strongest risk factors in this scenario for placental abruption are:
- Hypertension and cocaine use
- Advanced maternal age and twin gestation
- Gestational diabetes and polyhydramnios
- Prior cesarean and breech presentation
Correct answer: Hypertension and cocaine use
Hypertensive disorders and cocaine use are among the most significant risk factors for placental abruption because both cause vasoconstriction and damage to the uteroplacental vasculature. Maternal trauma, prior abruption, smoking, and rapid uterine decompression are additional contributors. Diabetes, breech presentation, and twin gestation are not primary abruption risk factors.
- A patient with known complete placenta previa is admitted for bleeding. Which nursing action is contraindicated?
- Applying continuous external fetal monitoring
- Performing a digital cervical examination
- Drawing a type and crossmatch
- Establishing IV access and monitoring vital signs
Correct answer: Performing a digital cervical examination
A digital cervical examination is contraindicated in placenta previa because manipulation of the cervix can disrupt the placenta and provoke catastrophic hemorrhage. Acceptable actions include large-bore IV access, continuous fetal and maternal monitoring, and ensuring blood is available through type and crossmatch. If examination is needed, a careful sterile speculum exam may be considered, never a digital one.
- A nurse provides dietary and monitoring teaching to a patient newly diagnosed with gestational diabetes. The first-line management approach for gestational diabetes is:
- Immediate initiation of basal-bolus insulin
- Sulfonylurea therapy as the preferred agent
- Restriction of all carbohydrate intake
- Medical nutrition therapy with exercise and blood glucose self-monitoring
Correct answer: Medical nutrition therapy with exercise and blood glucose self-monitoring
The cornerstone of gestational diabetes management is medical nutrition therapy combined with physical activity and self-monitoring of blood glucose. Pharmacologic therapy, with insulin as the preferred agent, is added only when glucose targets are not met with lifestyle measures. Complete carbohydrate restriction is neither safe nor recommended; controlled, distributed carbohydrate intake is the goal.
- When insulin is required for a patient with gestational diabetes, the nurse teaches that insulin is preferred over many oral agents during pregnancy primarily because:
- Insulin can be given only once weekly
- Insulin is less expensive than oral agents
- Insulin requires no glucose monitoring
- Insulin does not cross the placenta in clinically significant amounts
Correct answer: Insulin does not cross the placenta in clinically significant amounts
Insulin is the preferred pharmacologic agent for gestational diabetes because it does not cross the placenta in clinically significant amounts, making it the best-studied and safest option for the fetus. Oral agents can cross the placenta to varying degrees. Insulin therapy still requires careful self-monitoring of blood glucose to guide dosing.
- A neonate born to a mother with poorly controlled gestational diabetes is at greatest immediate risk for which complication in the first hours of life?
- Hypernatremia
- Neonatal hypoglycemia
- Anemia
- Hyperglycemia
Correct answer: Neonatal hypoglycemia
A neonate of a diabetic mother is at high risk for neonatal hypoglycemia because chronic maternal hyperglycemia drives fetal hyperinsulinemia; after birth the maternal glucose supply ends but the infant's insulin remains high, causing a rapid drop in blood glucose. Early feeding and glucose monitoring are essential. Macrosomia, hypocalcemia, and polycythemia are other recognized risks, but acute hypoglycemia is the most immediate concern.
- A patient at 32 weeks is in confirmed preterm labor. A tocolytic is ordered. The primary purpose of administering a tocolytic in this setting is to:
- Treat an underlying intraamniotic infection
- Delay delivery long enough to give corticosteroids and arrange transfer
- Reverse cervical dilation that has already occurred
- Permanently stop preterm labor until term
Correct answer: Delay delivery long enough to give corticosteroids and arrange transfer
Tocolytics in preterm labor are used to delay delivery by roughly 48 hours, primarily to allow a course of antenatal corticosteroids to take effect and to permit maternal transfer to a facility with appropriate neonatal care. They do not reverse the underlying process or stop labor indefinitely. Tocolysis is contraindicated when there is intraamniotic infection or other reasons to expedite delivery.
- A nurse reviews tocolytic options for a patient in preterm labor at 31 weeks. Which agent is a calcium channel blocker commonly used for tocolysis?
- Indomethacin
- Terbutaline
- Nifedipine
- Betamethasone
Correct answer: Nifedipine
Nifedipine is a calcium channel blocker frequently used as a tocolytic to relax uterine smooth muscle in preterm labor. Terbutaline is a beta-agonist tocolytic, and indomethacin is an NSAID tocolytic typically reserved for use before about 32 weeks. Betamethasone is a corticosteroid for fetal lung maturity, not a tocolytic.
- Magnesium sulfate may be administered to a patient in preterm labor at 28 weeks for a purpose distinct from tocolysis or seizure prevention. That additional purpose is:
- Prevention of neonatal hypoglycemia
- Maternal blood pressure reduction
- Fetal neuroprotection to reduce the risk of cerebral palsy
- Acceleration of fetal lung maturity
Correct answer: Fetal neuroprotection to reduce the risk of cerebral palsy
Before approximately 32 weeks, magnesium sulfate is given for fetal neuroprotection, reducing the risk and severity of cerebral palsy in infants delivered preterm. This is a separate indication from its use in seizure prophylaxis for preeclampsia. It is not a primary tocolytic and does not mature the fetal lungs, which is the role of corticosteroids.
- A patient at 35 weeks reports intense pruritus of the palms and soles, worse at night, with no rash. Serum bile acids are markedly elevated. The most likely diagnosis is:
- Pruritic urticarial papules of pregnancy
- HELLP syndrome
- Intrahepatic cholestasis of pregnancy
- Contact dermatitis
Correct answer: Intrahepatic cholestasis of pregnancy
Intrahepatic cholestasis of pregnancy presents with intense pruritus, classically of the palms and soles and worse at night, without a primary rash, and is confirmed by elevated serum bile acids. It carries fetal risks including stillbirth, so monitoring and timing of delivery are important and ursodeoxycholic acid is used to relieve symptoms. HELLP would show thrombocytopenia and elevated liver enzymes rather than isolated pruritus with high bile acids.
- A patient with chronic hypertension presents at 12 weeks for her first prenatal visit. The nurse anticipates that low-dose aspirin will be recommended because its primary benefit in this patient is to:
- Prevent gestational diabetes
- Lower the risk of developing preeclampsia
- Reduce nausea and vomiting
- Increase amniotic fluid volume
Correct answer: Lower the risk of developing preeclampsia
Low-dose aspirin started in the late first trimester is recommended for patients at high risk for preeclampsia, including those with chronic hypertension, to reduce the incidence of preeclampsia and its complications. It works by improving placental perfusion through its antiplatelet effect. It does not affect gestational diabetes risk, nausea, or amniotic fluid volume.
- A patient at 33 weeks with severe preeclampsia has a blood pressure of 168/114 mm Hg. The nurse anticipates an order for a first-line IV antihypertensive for acute severe-range hypertension, which would be:
- Furosemide
- Methyldopa
- Labetalol
- Magnesium sulfate
Correct answer: Labetalol
Labetalol given intravenously is a first-line agent for the acute treatment of severe-range hypertension in pregnancy, along with IV hydralazine and oral immediate-release nifedipine. The goal is to lower blood pressure into a safer range within 30 to 60 minutes to reduce maternal stroke risk. Magnesium sulfate prevents seizures but does not adequately control blood pressure, and methyldopa is an oral agent for long-term, not acute, control.
- A patient at 34 weeks with insulin-treated pregestational diabetes is admitted with nausea, vomiting, abdominal pain, fruity breath, and a blood glucose of 280 mg/dL. The nurse recognizes the priority concern as:
- Diabetic ketoacidosis
- Hyperemesis gravidarum
- Gestational hypertension
- Hypoglycemic shock
Correct answer: Diabetic ketoacidosis
Diabetic ketoacidosis in pregnancy is a medical emergency that can develop at lower glucose levels than in nonpregnant adults and is suggested by nausea, vomiting, abdominal pain, fruity breath (ketones), and hyperglycemia. It threatens both mother and fetus and requires IV fluids, insulin, and electrolyte correction. The fruity breath and hyperglycemia rule out a hypoglycemic event.
- A pregnant patient is diagnosed with pyelonephritis at 28 weeks. The nurse understands the most significant pregnancy-related complication this infection can precipitate is:
- Gestational diabetes
- Preterm labor
- Placenta previa
- Polyhydramnios
Correct answer: Preterm labor
Pyelonephritis in pregnancy can trigger preterm labor through the systemic inflammatory and febrile response, and it can also cause maternal sepsis and acute respiratory distress. Prompt IV antibiotics and supportive care are essential, and untreated asymptomatic bacteriuria is a key preventable precursor. It does not cause previa, gestational diabetes, or polyhydramnios.
- A patient at 30 weeks with severe preeclampsia is receiving magnesium sulfate. Which assessment finding indicates the magnesium level is in a SAFE therapeutic range rather than toxic?
- Respiratory rate of 8 with slurred speech
- Absent deep tendon reflexes with a respiratory rate of 10
- Urine output of 10 mL/hour over four hours
- Present but diminished deep tendon reflexes with a respiratory rate of 16
Correct answer: Present but diminished deep tendon reflexes with a respiratory rate of 16
Present (even if slightly diminished) deep tendon reflexes with an adequate respiratory rate of at least 12 indicate the patient is within the therapeutic range and not toxic. Absent reflexes, respiratory depression, slurred speech, and markedly reduced urine output are warning signs of toxicity or accumulation. Reflexes, respirations, and urine output are the core nursing assessments during a magnesium infusion.
- A patient with twin pregnancy is diagnosed with twin-to-twin transfusion syndrome. The nurse understands this complication arises specifically in:
- Fraternal (non-identical) twins only
- Dichorionic-diamniotic twins
- Monochorionic twins sharing placental vascular anastomoses
- Any twin pregnancy regardless of chorionicity
Correct answer: Monochorionic twins sharing placental vascular anastomoses
Twin-to-twin transfusion syndrome occurs in monochorionic twins because they share a single placenta with vascular anastomoses, allowing unequal blood flow between the donor and recipient twins. Dichorionic twins each have a separate placenta and are not at risk. The donor becomes anemic with oligohydramnios while the recipient becomes volume-overloaded with polyhydramnios.
- A patient at 36 weeks with severe preeclampsia and a category II tracing is being prepared for delivery. The nurse understands magnesium sulfate seizure prophylaxis should be continued for what period?
- For at least 24 hours after delivery
- Until the moment of delivery only
- Until the blood pressure normalizes, regardless of timing
- For 72 hours before delivery only
Correct answer: For at least 24 hours after delivery
Magnesium sulfate for seizure prophylaxis in preeclampsia with severe features or eclampsia is continued for at least 24 hours after delivery, because the risk of postpartum seizures persists in that window. Stopping at delivery leaves the patient vulnerable. The infusion is monitored throughout for signs of toxicity.
- A patient at 33 weeks presents with a tense, painful uterus and dark vaginal bleeding, and laboratory results show a falling fibrinogen and prolonged coagulation times. The nurse recognizes that placental abruption can lead to which serious maternal complication reflected by these labs?
- Gestational thrombocytosis
- Disseminated intravascular coagulation
- Hypercoagulable rebound
- Iron-deficiency anemia only
Correct answer: Disseminated intravascular coagulation
Severe placental abruption can trigger disseminated intravascular coagulation, in which the release of placental tissue factor activates widespread clotting that consumes fibrinogen and platelets, producing falling fibrinogen and prolonged clotting times along with bleeding. This is a life-threatening complication requiring blood product replacement and delivery. The labs reflect consumptive coagulopathy, not simple anemia.
- A nurse is teaching a patient about the difference between preeclampsia without and with severe features. Which finding moves the diagnosis to preeclampsia WITH severe features?
- Serum creatinine rising to greater than 1.1 mg/dL or doubling of baseline
- Trace proteinuria on dipstick
- Blood pressure of 146/94 mm Hg
- Mild facial puffiness
Correct answer: Serum creatinine rising to greater than 1.1 mg/dL or doubling of baseline
A serum creatinine above 1.1 mg/dL or a doubling of the baseline creatinine indicates renal insufficiency, which is a severe feature of preeclampsia. Other severe features include severe-range blood pressure, thrombocytopenia, impaired liver function, pulmonary edema, and new cerebral or visual symptoms. Non-severe-range blood pressure, trace proteinuria, and edema do not qualify as severe features.
- A patient at 26 weeks with PPROM is being monitored expectantly. Which assessment finding would prompt the team to proceed with delivery rather than continue expectant management?
- Maternal temperature of 36.8 C and reassuring fetal status
- Stable amniotic fluid leakage without contractions
- Normal maternal white blood cell count
- Signs of intraamniotic infection with maternal fever and fetal tachycardia
Correct answer: Signs of intraamniotic infection with maternal fever and fetal tachycardia
Development of intraamniotic infection, indicated by maternal fever with fetal tachycardia and other inflammatory signs, is an indication to deliver rather than continue expectant management of PPROM. Other triggers include placental abruption, nonreassuring fetal status, and active labor. Stable leakage with reassuring maternal and fetal status supports continued expectant care until the gestational threshold.
- A patient at 12 weeks presents with vaginal bleeding, a uterus larger than expected for dates, severe nausea, and a markedly elevated hCG, with ultrasound showing a snowstorm pattern. The nurse recognizes this as:
- A complete hydatidiform mole
- A threatened abortion
- A normal twin gestation
- An ectopic pregnancy
Correct answer: A complete hydatidiform mole
A complete hydatidiform mole presents with vaginal bleeding, a uterus larger than dates, markedly elevated hCG, exaggerated nausea, and a characteristic snowstorm or cluster-of-grapes appearance on ultrasound with no fetus. Management is uterine evacuation followed by serial hCG monitoring to detect persistent trophoblastic disease. An ectopic pregnancy would not show this intrauterine pattern or hCG elevation.
- A patient with severe preeclampsia is started on magnesium sulfate. Which baseline and ongoing assessment is most essential for detecting impaired magnesium clearance before toxicity develops?
- Fundal height
- Hourly urine output
- Daily weight
- Bowel sounds
Correct answer: Hourly urine output
Because magnesium is excreted by the kidneys, hourly urine output is essential; oliguria allows magnesium to accumulate and precipitate toxicity even at normal infusion rates. Output below about 30 mL/hour or 100 mL over four hours warrants reassessment of the dose. Reflexes and respiratory rate are also monitored, but adequate renal output is the key determinant of safe clearance.
- A patient at 29 weeks with preeclampsia with severe features asks why she cannot simply remain on bed rest until term. The nurse's most accurate response is that:
- Delivery is the only definitive treatment, so expectant care is balanced against worsening disease
- Antihypertensives will fully resolve the condition
- Bed rest alone reliably cures preeclampsia
- Magnesium sulfate cures the underlying placental problem
Correct answer: Delivery is the only definitive treatment, so expectant care is balanced against worsening disease
Delivery of the fetus and placenta is the only definitive treatment for preeclampsia, so management is a careful balance between prolonging gestation for fetal maturity and delivering when maternal or fetal deterioration occurs. Bed rest, antihypertensives, and magnesium control symptoms and complications but do not cure the disease. Severe features that worsen often prompt delivery even before term.
- A patient at 30 weeks with chronic hypertension develops new proteinuria and worsening blood pressures. The nurse recognizes this superimposed condition as:
- Isolated gestational hypertension
- Gestational diabetes
- Superimposed preeclampsia
- Resolved chronic hypertension
Correct answer: Superimposed preeclampsia
Superimposed preeclampsia is diagnosed when a patient with pre-existing chronic hypertension develops new-onset proteinuria, a sudden worsening of blood pressure, or new severe features such as thrombocytopenia or elevated liver enzymes. It carries higher risks than either condition alone and requires close maternal and fetal surveillance. Gestational hypertension and gestational diabetes are distinct entities and do not describe this scenario.
- An Rh-negative patient at 28 weeks with no anti-D antibodies on screening is to receive Rho(D) immune globulin. The nurse explains the purpose of this routine antenatal dose is to:
- Stimulate maternal antibody production against the fetus
- Prevent maternal sensitization to Rh-positive fetal red blood cells
- Treat an existing fetal anemia
- Correct maternal Rh-negative status permanently
Correct answer: Prevent maternal sensitization to Rh-positive fetal red blood cells
Rho(D) immune globulin given at about 28 weeks to an unsensitized Rh-negative patient prevents maternal sensitization by clearing any Rh-positive fetal cells before the maternal immune system mounts an anti-D response. This prophylaxis protects future pregnancies from hemolytic disease of the fetus and newborn. A repeat dose is given after birth if the infant is Rh-positive, and it does not treat existing anemia or change the mother's blood type.
- A previously normotensive patient at 37 weeks gestation has a blood pressure of 164/112 mm Hg that persists when repeated 15 minutes later. According to current ACOG criteria, how should the nurse classify this reading?
- Chronic hypertension because it appeared before 20 weeks
- Mild gestational hypertension that can be rechecked at the next visit
- Normal late-pregnancy elevation related to positioning
- Severe-range (acute-onset severe) hypertension requiring expeditious treatment
Correct answer: Severe-range (acute-onset severe) hypertension requiring expeditious treatment
This is severe-range (acute-onset severe) hypertension requiring expeditious antihypertensive treatment. ACOG defines severe-range blood pressure as systolic at or above 160 mm Hg and/or diastolic at or above 110 mm Hg; when confirmed as persistent for 15 minutes or more, antihypertensive therapy should be initiated promptly to reduce the risk of stroke. It cannot be chronic hypertension because that is defined by elevation before 20 weeks, and a reading this high is never a normal positional change.
- A patient at 33 weeks develops blood pressure of 148/96 mm Hg on two occasions four hours apart but has no proteinuria and normal platelets, liver enzymes, and creatinine. Which diagnosis best fits this presentation?
- Chronic hypertension
- Gestational hypertension
- HELLP syndrome
- Preeclampsia with severe features
Correct answer: Gestational hypertension
This presentation is gestational hypertension, defined as new-onset blood pressure of 140/90 mm Hg or higher after 20 weeks in a previously normotensive patient WITHOUT proteinuria or other end-organ findings. Preeclampsia requires proteinuria or one of the severe-feature laboratory or clinical findings, which are absent here. Because gestational hypertension can progress to preeclampsia, ongoing surveillance is essential.
- A patient with preeclampsia has a blood pressure of 150/94 mm Hg but her platelet count is 88,000/microL and her serum creatinine has risen to 1.3 mg/dL. How does this change her diagnosis?
- She has gestational hypertension only because her blood pressure is below 160/110
- She has eclampsia because of the laboratory changes
- She has no preeclampsia because severe features require severe-range blood pressure
- She now meets criteria for preeclampsia with severe features despite non-severe blood pressure
Correct answer: She now meets criteria for preeclampsia with severe features despite non-severe blood pressure
She now meets criteria for preeclampsia with severe features despite non-severe blood pressure, because thrombocytopenia below 100,000/microL and renal insufficiency (creatinine above 1.1 mg/dL or doubling of baseline) are stand-alone severe features. Severe features can be diagnosed by end-organ involvement even when blood pressure is in the non-severe range. Eclampsia specifically requires new-onset seizures, which have not occurred.
- A 29-year-old patient with preeclampsia suddenly has a generalized tonic-clonic seizure on the antepartum unit. After ensuring airway, breathing, and patient safety, what is the first-line pharmacologic therapy to control and prevent further seizures?
- Lorazepam infusion
- Magnesium sulfate
- Phenytoin loading dose
- Labetalol bolus
Correct answer: Magnesium sulfate
Magnesium sulfate is the first-line agent to treat and prevent recurrent eclamptic seizures and is superior to phenytoin and benzodiazepines for this purpose. After maternal stabilization (airway, breathing, lateral positioning, oxygen), a magnesium loading dose followed by maintenance infusion is given. Labetalol controls blood pressure but does not prevent seizures, so it addresses a different problem.
- A patient receiving a magnesium sulfate infusion for preeclampsia is monitored for toxicity. Which assessment finding is typically the EARLIEST clinical sign that the magnesium level is becoming toxic?
- Urine output of 40 mL per hour
- Respiratory rate of 6 breaths per minute
- Cardiac arrest
- Loss of deep tendon (patellar) reflexes
Correct answer: Loss of deep tendon (patellar) reflexes
Loss of deep tendon (patellar) reflexes is the earliest clinical sign of magnesium toxicity, typically occurring before respiratory depression, which appears at higher serum levels, and cardiac arrest, which is a late and lethal effect. Because of this, the nurse checks reflexes routinely; their disappearance signals the need to stop the infusion and reassess. A urine output of 40 mL/hr is adequate and reassuring rather than a sign of toxicity.
- During a magnesium sulfate infusion, a patient develops absent reflexes, a respiratory rate of 8, and slurred speech. The infusion is stopped. Which medication should the nurse anticipate administering as the antidote?
- Flumazenil IV
- Naloxone IV
- Sodium bicarbonate IV
- Calcium gluconate IV
Correct answer: Calcium gluconate IV
Calcium gluconate given intravenously is the antidote for magnesium sulfate toxicity; a typical dose is 1 g IV administered slowly over about 3 minutes. Calcium directly antagonizes magnesium at the neuromuscular junction, reversing respiratory and cardiac effects. Naloxone and flumazenil reverse opioids and benzodiazepines respectively and have no effect on magnesium toxicity.
- Which set of parameters should the nurse monitor at least hourly to detect early magnesium sulfate toxicity in a preeclamptic patient?
- Deep tendon reflexes, respiratory rate, and urine output
- Fundal height, abdominal girth, and bowel sounds
- Bishop score, cervical dilation, and station
- Blood glucose, hemoglobin, and platelet count
Correct answer: Deep tendon reflexes, respiratory rate, and urine output
Deep tendon reflexes, respiratory rate, and urine output are the core monitoring parameters for magnesium therapy. Diminished reflexes signal rising levels, a respiratory rate below 12 suggests respiratory depression, and urine output below about 30 mL/hr means the kidneys are not clearing magnesium, allowing accumulation. Glucose, hemoglobin, and cervical exam findings do not track magnesium toxicity.
- A patient at 35 weeks reports right upper quadrant pain, nausea, and malaise. Labs show hemolysis on smear, AST of 180 U/L, and platelets of 78,000/microL. Which condition do these findings indicate?
- Hyperemesis gravidarum
- Gestational thrombocytopenia
- HELLP syndrome
- Acute cholecystitis
Correct answer: HELLP syndrome
These findings indicate HELLP syndrome, an acronym for Hemolysis, Elevated Liver enzymes, and Low Platelets, and a severe variant within the preeclampsia spectrum. The combination of microangiopathic hemolysis, transaminase elevation, and thrombocytopenia under 100,000/microL, often with right upper quadrant or epigastric pain, distinguishes it. Gestational thrombocytopenia is isolated mild thrombocytopenia without hemolysis or liver involvement.
- A laboring patient with ruptured membranes has a single oral temperature of 38.4 C that persists on recheck 30 minutes later, plus a fetal heart rate baseline of 175 bpm. Which assessment most supports a diagnosis of suspected intraamniotic infection?
- Clear amniotic fluid with normal odor
- Mild ankle edema and heartburn
- Contractions every 3 minutes
- Maternal fever plus fetal tachycardia
Correct answer: Maternal fever plus fetal tachycardia
Maternal fever plus fetal tachycardia supports suspected intraamniotic infection (chorioamnionitis). ACOG criteria define suspected infection as maternal intrapartum fever (a single temperature of 39 C or higher, or 38 to 38.9 C persisting on recheck) plus at least one of fetal tachycardia, maternal leukocytosis, or purulent cervical drainage. Contractions and clear fluid are normal labor findings, not infection markers.
- A patient at 30 weeks reports a sudden gush of clear fluid, and rupture of membranes is confirmed with no contractions. Which intervention is the expected component of expectant management at this gestational age?
- Immediate oxytocin induction of labor
- A 7-day course of latency antibiotics
- Discharge home with weekly office visits
- Therapeutic amnioinfusion to restore fluid
Correct answer: A 7-day course of latency antibiotics
A 7-day course of latency antibiotics is recommended during expectant management of preterm prelabor rupture of membranes (PPROM) before 34 0/7 weeks. Broad-spectrum antibiotics prolong the latency period, reduce chorioamnionitis, and decrease gestational-age-dependent neonatal morbidity. Routine induction is not indicated at 30 weeks without infection or fetal compromise, and PPROM patients are managed inpatient rather than discharged.
- A patient at 31 weeks with PPROM is at risk for delivery within 7 days. Which medication should the nurse anticipate to reduce neonatal respiratory complications?
- Betamethasone, two 12 mg IM doses 24 hours apart
- Surfactant administered to the mother intravenously
- Penicillin G as the sole antenatal therapy
- Indomethacin to mature the fetal lungs
Correct answer: Betamethasone, two 12 mg IM doses 24 hours apart
Betamethasone given as two 12 mg intramuscular doses 24 hours apart is the standard antenatal corticosteroid course to accelerate fetal lung maturity. ACOG recommends a single course for patients between 24 0/7 and 33 6/7 weeks at risk of delivery within 7 days, including those with ruptured membranes. Surfactant is given directly to the neonate after birth, not to the mother, and indomethacin is a tocolytic that does not mature lungs.
- A patient at 29 weeks is in preterm labor with cervical change. The provider orders a tocolytic to delay delivery. What is the primary goal of short-term tocolysis in this situation?
- To prevent neonatal hypoglycemia after birth
- To allow time for antenatal corticosteroids to take effect and for maternal transport
- To stop labor permanently and continue the pregnancy to term
- To treat the underlying cause of preterm labor
Correct answer: To allow time for antenatal corticosteroids to take effect and for maternal transport
The primary goal of short-term tocolysis is to delay delivery long enough for antenatal corticosteroids to take effect (about 48 hours) and to permit maternal transport to a facility with appropriate neonatal care. Tocolytics do not reliably prolong pregnancy to term, do not treat the underlying cause, and are not used to prevent neonatal hypoglycemia.
- A patient at 32 weeks presents with painless, bright-red vaginal bleeding and a soft, non-tender uterus, with the fetus in a reassuring pattern. Which condition does this classically describe?
- Placental abruption
- Vasa previa
- Placenta previa
- Uterine rupture
Correct answer: Placenta previa
This classically describes placenta previa, in which the placenta covers or lies near the cervical os, producing PAINLESS, bright-red bleeding with a soft, non-tender uterus. Placental abruption, by contrast, typically causes PAINFUL bleeding with a firm, tender, often hypertonic uterus. Avoiding digital cervical exams is critical until previa is excluded by ultrasound.
- Which combination of findings most strongly suggests placental abruption rather than placenta previa?
- Painful dark-red bleeding with a rigid, tender uterus and frequent contractions
- Heavy bleeding only in the immediate postpartum period
- Painless bright-red bleeding with a soft, non-tender uterus
- Painless bleeding immediately after artificial rupture of membranes
Correct answer: Painful dark-red bleeding with a rigid, tender uterus and frequent contractions
Painful dark-red bleeding with a rigid, tender uterus and frequent contractions strongly suggests placental abruption, the premature separation of a normally implanted placenta. Concealed bleeding can also occur, so uterine pain and tenderness may exceed visible blood loss. Painless bright-red bleeding points to previa, and bleeding right after rupture of membranes raises concern for vasa previa.
- Which maternal condition carries the strongest association with placental abruption?
- Group B Streptococcus colonization
- Iron-deficiency anemia
- Gestational diabetes controlled with diet
- Maternal hypertension (chronic or preeclampsia)
Correct answer: Maternal hypertension (chronic or preeclampsia)
Maternal hypertension, whether chronic or from preeclampsia, is the strongest and most consistent risk factor for placental abruption. Other notable risks include abdominal trauma, cocaine use, prior abruption, and rapid uterine decompression. Diet-controlled gestational diabetes, GBS colonization, and iron-deficiency anemia are not primary risk factors for abruption.
- A patient with gestational diabetes is admitted for glucose control. Which fasting and 1-hour postprandial glucose targets reflect current recommended goals for gestational diabetes?
- Fasting below 130 mg/dL and 1-hour postprandial below 200 mg/dL
- Fasting below 70 mg/dL and 1-hour postprandial below 100 mg/dL
- Fasting below 95 mg/dL and 1-hour postprandial below 140 mg/dL
- Fasting below 110 mg/dL and 1-hour postprandial below 180 mg/dL
Correct answer: Fasting below 95 mg/dL and 1-hour postprandial below 140 mg/dL
A fasting glucose below 95 mg/dL and a 1-hour postprandial below 140 mg/dL (or 2-hour below 120 mg/dL) are the standard glycemic targets in gestational diabetes. Maintaining these levels reduces macrosomia, shoulder dystocia, and neonatal hypoglycemia. The higher thresholds listed would permit hyperglycemia and fetal harm, while the lowest targets risk maternal hypoglycemia.
- Immediately following an eclamptic seizure, fetal monitoring often shows a transient bradycardia or recurrent late decelerations. What is the most appropriate initial nursing response?
- Proceed directly to emergent cesarean during the seizure
- Discontinue magnesium sulfate to improve fetal heart rate
- Administer a tocolytic to reduce fetal stress
- Stabilize the mother and allow time for intrauterine resuscitation before deciding on delivery
Correct answer: Stabilize the mother and allow time for intrauterine resuscitation before deciding on delivery
Stabilizing the mother and allowing time for intrauterine resuscitation before deciding on delivery is correct, because the post-ictal fetal heart rate changes are usually transient and resolve as maternal oxygenation and perfusion recover. Maternal stabilization (airway, oxygen, lateral position, blood pressure and seizure control) takes priority; delivery during an active seizure is unsafe. Magnesium is continued because it prevents recurrent seizures.
- A patient with severe-range blood pressure of 168/114 mm Hg needs urgent treatment. Which medication is an appropriate first-line agent for acute-onset severe hypertension in pregnancy?
- IV labetalol
- Oral lisinopril
- Sublingual nifedipine immediate-acting capsule
- IV furosemide
Correct answer: IV labetalol
IV labetalol is an appropriate first-line antihypertensive for acute-onset severe hypertension in pregnancy, along with IV hydralazine and oral immediate-release nifedipine tablets. ACE inhibitors such as lisinopril are contraindicated in pregnancy because of fetal renal effects, furosemide is not used for acute pressure control, and rapid-acting sublingual nifedipine capsules are avoided due to the risk of precipitous hypotension.
- A patient at 28 weeks is expected to deliver imminently. In addition to seizure prophylaxis indications, magnesium sulfate may be administered in this setting primarily for which fetal benefit?
- Prevention of neonatal hyperbilirubinemia
- Acceleration of fetal lung maturity
- Closure of the fetal ductus arteriosus
- Fetal neuroprotection to reduce the risk of cerebral palsy
Correct answer: Fetal neuroprotection to reduce the risk of cerebral palsy
Magnesium sulfate is given before anticipated early preterm birth (generally before 32 weeks) for fetal neuroprotection, reducing the risk and severity of cerebral palsy in survivors. Antenatal corticosteroids, not magnesium, accelerate lung maturity. Indomethacin can close the ductus arteriosus, and phototherapy addresses hyperbilirubinemia.
- A patient at 34 weeks is diagnosed with HELLP syndrome with platelets falling to 60,000/microL. What is the definitive management?
- Initiation of antihypertensives alone with no plan to deliver
- Platelet transfusion to normalize counts and continue the pregnancy
- Delivery of the fetus and placenta
- Long-term outpatient bed rest until term
Correct answer: Delivery of the fetus and placenta
Delivery of the fetus and placenta is the definitive management of HELLP syndrome, because the disease process resolves only after delivery. Stabilization with magnesium for seizure prophylaxis and antihypertensives for severe-range pressures supports the patient, but these do not cure the syndrome. Platelet transfusion may be used around delivery for very low counts or bleeding, but it is supportive rather than definitive.
- At what blood pressure threshold, measured on two occasions after 20 weeks in a previously normotensive patient, is gestational hypertension diagnosed?
- 160/110 mm Hg or higher
- 150/100 mm Hg or higher
- 140/90 mm Hg or higher
- 130/80 mm Hg or higher
Correct answer: 140/90 mm Hg or higher
Gestational hypertension is diagnosed at a blood pressure of 140/90 mm Hg or higher on two occasions at least 4 hours apart after 20 weeks of gestation in a previously normotensive patient. A reading of 160/110 mm Hg or higher defines severe-range hypertension, a more urgent category, while 130/80 reflects general adult stage 1 hypertension and is not the obstetric diagnostic threshold.
- A patient being treated for eclampsia with magnesium sulfate develops a magnesium level of 10 mg/dL with absent reflexes but an adequate respiratory rate. What is the most appropriate immediate nursing action?
- Administer an additional magnesium bolus
- Increase the magnesium infusion to control seizures
- Take no action because reflexes are not clinically relevant
- Stop the magnesium infusion and notify the provider
Correct answer: Stop the magnesium infusion and notify the provider
Stopping the magnesium infusion and notifying the provider is the correct immediate action, because absent deep tendon reflexes with a level around 10 mg/dL signals impending toxicity and the next threat is respiratory depression. Continuing or increasing magnesium would worsen toxicity. Calcium gluconate should be readily available should respiratory compromise develop.
- A patient reports possible leakage of fluid at 31 weeks. Which finding best confirms rupture of membranes while minimizing infection risk?
- Presence of contractions every 5 minutes
- Sterile speculum exam showing pooling of fluid that is nitrazine-positive and ferns on a slide
- Digital cervical exam to assess dilation and effacement
- A reactive nonstress test
Correct answer: Sterile speculum exam showing pooling of fluid that is nitrazine-positive and ferns on a slide
A sterile speculum exam showing pooling of fluid that turns nitrazine paper blue and ferns when dried on a slide is the standard, lower-risk way to confirm rupture of membranes. Digital exams are avoided in PPROM unless the patient is in active labor because they introduce bacteria and shorten latency. Contractions and a reactive NST do not confirm ruptured membranes.
- A patient with preeclampsia reports a persistent headache unrelieved by acetaminophen and new visual scotomata. How should the nurse interpret these symptoms?
- They are expected discomforts of late pregnancy
- They indicate the preeclampsia is resolving
- They are unrelated to the blood pressure disorder
- They are neurologic severe features warranting urgent evaluation
Correct answer: They are neurologic severe features warranting urgent evaluation
A persistent, medication-resistant headache and new visual disturbances are neurologic severe features of preeclampsia warranting urgent evaluation, because they signal cerebral involvement and heightened risk of eclampsia and stroke. The nurse should reassess blood pressure, notify the provider, and anticipate magnesium and antihypertensive therapy. These are never normal late-pregnancy discomforts or signs of resolution.
- Which serum magnesium range is generally considered therapeutic for seizure prophylaxis in preeclampsia, below the level at which reflexes are typically lost?
- About 9 to 12 mg/dL
- About 13 to 15 mg/dL
- About 4 to 7 mg/dL
- About 1 to 2 mg/dL
Correct answer: About 4 to 7 mg/dL
A serum magnesium of roughly 4 to 7 mg/dL is the therapeutic range for seizure prophylaxis. Loss of patellar reflexes typically begins around 9 to 12 mg/dL, respiratory depression near 12 or higher, and cardiac arrest at still higher levels. A level of 1 to 2 mg/dL is a normal non-pregnant baseline and is subtherapeutic for prophylaxis.
- A laboring patient is diagnosed with suspected intraamniotic infection. In addition to maternal antipyretics, what is the cornerstone of intrapartum management?
- Delaying antibiotics until blood cultures return positive
- Stopping labor with tocolytics to prolong the pregnancy
- Strict bed rest with no antibiotics until 24 hours postpartum
- Broad-spectrum IV antibiotics and proceeding toward delivery
Correct answer: Broad-spectrum IV antibiotics and proceeding toward delivery
Broad-spectrum IV antibiotics started promptly, combined with proceeding toward delivery, are the cornerstone of managing intraamniotic infection. Treatment should not await culture results, and prolonging the pregnancy with tocolytics is contraindicated because ongoing infection threatens both mother and fetus. Delivery does not have to be immediate cesarean, but expeditious birth is the goal.
- A patient at 30 weeks with known complete placenta previa has an episode of painless bleeding that stops, and both mother and fetus are stable. What is the most appropriate management approach?
- Expectant inpatient management with avoidance of digital and vaginal exams
- Immediate vaginal delivery
- Discharge with instructions to resume intercourse
- Digital cervical exam to assess for dilation
Correct answer: Expectant inpatient management with avoidance of digital and vaginal exams
Expectant inpatient management with strict avoidance of digital and vaginal exams is appropriate for a stable preterm patient with previa after a self-limited bleed, aiming to prolong the pregnancy while monitoring. Any digital or vaginal exam can provoke catastrophic hemorrhage. Delivery is planned by cesarean, typically scheduled, and intercourse and other cervical manipulation are avoided.
- A patient with a large placental abruption develops oozing from IV sites, prolonged PT and PTT, low fibrinogen, and falling platelets. Which complication has most likely developed?
- Von Willebrand disease newly unmasked
- Disseminated intravascular coagulation (DIC)
- Amniotic fluid embolism resolving spontaneously
- Gestational thrombocytopenia
Correct answer: Disseminated intravascular coagulation (DIC)
Disseminated intravascular coagulation (DIC) has most likely developed, a recognized and serious complication of significant placental abruption. Release of thromboplastin from the disrupted placenta triggers widespread clotting that consumes platelets and clotting factors, lowering fibrinogen and prolonging PT and PTT, which produces the bleeding from puncture sites. Definitive treatment requires delivery and blood-product replacement.
- A patient with PPROM reaches 34 weeks of gestation with no signs of infection, labor, or fetal compromise. According to current guidance, what is the generally recommended plan?
- Begin long-term tocolysis to reach term
- Proceed with delivery rather than continued expectant management
- Repeat a full course of latency antibiotics every week
- Continue expectant management until 39 weeks
Correct answer: Proceed with delivery rather than continued expectant management
Proceeding with delivery rather than continued expectant management is generally recommended once a PPROM pregnancy reaches about 34 0/7 weeks, because beyond this point the infection risk of remaining undelivered typically outweighs the benefit of additional fetal maturation. Expectant management to 39 weeks and repeated weekly antibiotic courses are not standard, and prolonged tocolysis is not used in PPROM.
- A patient with preeclampsia with severe features develops dyspnea, crackles in the lung bases, and an oxygen saturation of 90%. Which severe feature do these findings represent?
- Pulmonary edema
- Gestational rhinitis
- Physiologic dyspnea of pregnancy
- Aspiration pneumonia from labor
Correct answer: Pulmonary edema
These findings represent pulmonary edema, a recognized severe feature of preeclampsia caused by increased capillary permeability and fluid overload. New dyspnea with bibasilar crackles and hypoxemia requires prompt evaluation, oxygen, careful fluid management, and often diuresis. Physiologic dyspnea of pregnancy does not cause hypoxemia or crackles, so it cannot explain these findings.
- A patient received a complete course of betamethasone at 28 weeks but did not deliver and now at 33 weeks is again at imminent risk of preterm birth. Which action reflects current corticosteroid guidance?
- Withhold all further corticosteroids because one course was already given
- Administer weekly courses from the original administration onward
- Give surfactant to the mother instead of corticosteroids
- Administer a single rescue course because more than 14 days have passed and she remains under 34 weeks
Correct answer: Administer a single rescue course because more than 14 days have passed and she remains under 34 weeks
Administering a single rescue (repeat) course is appropriate when the prior course was more than 7 to 14 days earlier, the patient is still under 34 0/7 weeks, and delivery is again anticipated within 7 days. Routine serial weekly courses are not recommended because of potential adverse effects. Maternal surfactant is not a therapy.
- During an eclamptic seizure, in addition to protecting the airway and providing oxygen, which positioning intervention best supports maternal-fetal perfusion?
- Place the patient in a lateral position
- Place the patient in steep reverse Trendelenburg
- Place the patient in high Fowler with legs dependent
- Place the patient flat in supine for chest access
Correct answer: Place the patient in a lateral position
Placing the patient in a lateral position is best because it relieves aortocaval compression from the gravid uterus, improving venous return and uteroplacental perfusion, and helps prevent aspiration. A flat supine position worsens caval compression and aspiration risk during a seizure. Reverse Trendelenburg and high Fowler do not address aortocaval compression.
- A patient is diagnosed with gestational diabetes after a 75 g or 100 g oral glucose tolerance test. Which fetal complication is the diet-and-glucose management plan most directly aimed at preventing?
- Rh isoimmunization
- Macrosomia and associated shoulder dystocia
- Neural tube defects
- Congenital cytomegalovirus infection
Correct answer: Macrosomia and associated shoulder dystocia
Glycemic management in gestational diabetes is most directly aimed at preventing macrosomia and the associated risk of shoulder dystocia and birth trauma, along with neonatal hypoglycemia. Maternal hyperglycemia drives fetal overgrowth via fetal hyperinsulinemia. Neural tube defects relate to pregestational hyperglycemia and folate status, while CMV and Rh isoimmunization have unrelated causes.
- After delivery of a patient treated for preeclampsia with severe features, for approximately how long is magnesium sulfate typically continued for seizure prophylaxis?
- For a full 7 days postpartum
- It is discontinued immediately at delivery
- About 24 hours postpartum
- Until the patient is discharged regardless of timing
Correct answer: About 24 hours postpartum
Magnesium sulfate is typically continued for about 24 hours after delivery because the risk of eclamptic seizures persists into the early postpartum period, when many seizures actually occur. Stopping immediately at delivery would leave the patient unprotected during this high-risk window. A routine 7-day course is not used for seizure prophylaxis.
- A patient with PPROM at 28 weeks is at increased risk for which fetal or obstetric complication directly related to the loss of amniotic fluid?
- Polyhydramnios
- Gestational hypertension
- Post-term pregnancy
- Umbilical cord compression and prolapse
Correct answer: Umbilical cord compression and prolapse
Umbilical cord compression and prolapse are increased risks after PPROM because the protective amniotic fluid is reduced or lost, leaving the cord vulnerable, especially with a high or unengaged presenting part. Reduced fluid also raises the risk of variable decelerations from cord compression. PPROM causes oligohydramnios, not polyhydramnios, and does not cause post-term pregnancy or gestational hypertension.
- During interpretation of an external fetal monitor tracing, the nurse identifies the baseline fetal heart rate as the mean rate rounded to increments of 5 beats per minute over a 10-minute window. Which value range represents a normal baseline per current NICHD terminology?
- 110 to 160 beats per minute
- 120 to 170 beats per minute
- 100 to 150 beats per minute
- 90 to 140 beats per minute
Correct answer: 110 to 160 beats per minute
A normal fetal heart rate baseline is 110 to 160 beats per minute. The baseline is the mean rate rounded to increments of 5 bpm during a 10-minute window, excluding accelerations, decelerations, and segments of marked variability. A baseline below 110 bpm is bradycardia and above 160 bpm is tachycardia.
- A nurse reviewing an electronic fetal monitor strip notes peak-to-trough fluctuations in the baseline that measure an amplitude of about 10 to 15 beats per minute. How should this variability be classified?
- Marked variability
- Moderate variability
- Absent variability
- Minimal variability
Correct answer: Moderate variability
Moderate variability is an amplitude range of 6 to 25 beats per minute from peak to trough of the baseline fluctuations. Moderate variability is the single most reliable indicator of adequate fetal oxygenation and normal acid-base status. Minimal variability is 5 bpm or fewer, and marked variability exceeds 25 bpm.
- A laboring patient's fetal heart rate tracing shows baseline fluctuations with an amplitude of 5 beats per minute or fewer but still detectable. Per NICHD definitions, this variability is described as:
- Minimal
- Moderate
- Marked
- Absent
Correct answer: Minimal
Minimal variability is defined as a detectable amplitude range of 5 beats per minute or fewer. It is distinguished from absent variability, in which the amplitude range is undetectable. Minimal variability can reflect fetal sleep, medications, or developing hypoxia and warrants context-based evaluation.
- On a fetal monitor strip, the baseline fluctuations have an amplitude range that is undetectable, appearing as a flat line apart from periodic changes. This finding is categorized as:
- Marked variability
- Absent variability
- Moderate variability
- Minimal variability
Correct answer: Absent variability
Absent variability is an undetectable amplitude range in the baseline fetal heart rate. It is the most concerning variability finding because, especially when paired with recurrent late or variable decelerations or bradycardia, it defines a Category III tracing predictive of abnormal fetal acid-base status.
- A fetal heart rate tracing displays baseline fluctuations with an amplitude range greater than 25 beats per minute. The nurse documents this as:
- Moderate variability
- Marked variability
- A sinusoidal pattern
- Minimal variability
Correct answer: Marked variability
Marked variability is an amplitude range greater than 25 beats per minute. Also historically called a saltatory pattern, it can be associated with acute hypoxia, cord compression, or fetal stimulation and should prompt closer evaluation rather than reassurance. It is excluded when determining the baseline rate.
- Beat-to-beat changes in the fetal heart rate that produce the irregular peak-to-trough fluctuations seen on a strip are generated primarily by which physiologic mechanism?
- Maternal respiratory rate transmitted through the abdominal wall
- Rhythmic contraction of the uterine smooth muscle
- Placental production of progesterone
- Balance between sympathetic and parasympathetic input to the fetal heart
Correct answer: Balance between sympathetic and parasympathetic input to the fetal heart
Fetal heart rate variability reflects the intact interplay of the sympathetic and parasympathetic branches of the fetal autonomic nervous system. Because this regulation depends on adequate oxygenation of the brainstem and cardiac centers, moderate variability is strong evidence of normal central oxygenation and acid-base balance.
- For a fetus at 34 weeks, an acceleration on the monitor is defined as an abrupt increase in heart rate above baseline that meets which threshold?
- At least 5 beats per minute above baseline lasting at least 5 seconds
- At least 10 beats per minute above baseline lasting at least 10 seconds
- At least 20 beats per minute above baseline lasting at least 20 seconds
- At least 15 beats per minute above baseline lasting at least 15 seconds
Correct answer: At least 15 beats per minute above baseline lasting at least 15 seconds
At or beyond 32 weeks, an acceleration is an abrupt rise of at least 15 beats per minute above baseline lasting at least 15 seconds. Accelerations reliably indicate the absence of fetal metabolic acidemia. Before 32 weeks, the threshold is lower at 10 beats per minute for at least 10 seconds.
- A fetus at 29 weeks of gestation shows heart rate rises of 10 beats per minute above baseline lasting 12 seconds with movement. How should the nurse interpret these?
- They do not qualify as accelerations at any gestational age
- They are appropriate accelerations for this gestational age
- They represent prolonged accelerations
- They should be documented as variable decelerations
Correct answer: They are appropriate accelerations for this gestational age
Before 32 weeks of gestation, an acceleration is defined as a rise of at least 10 beats per minute above baseline lasting at least 10 seconds, so a 10 bpm rise for 12 seconds qualifies. The 15-by-15 criterion applies only at 32 weeks and beyond, reflecting maturation of the fetal autonomic nervous system.
- A baseline fetal heart rate of 105 beats per minute sustained over a 10-minute window is best described as:
- Fetal tachycardia
- Fetal bradycardia
- Prolonged deceleration
- Normal baseline
Correct answer: Fetal bradycardia
Fetal bradycardia is a baseline below 110 beats per minute for at least 10 minutes; 105 bpm meets this definition. A prolonged deceleration is a transient drop of at least 15 bpm lasting 2 to 10 minutes, not a sustained baseline. Causes of true bradycardia include congenital heart block, hypoxia, and maternal hypothermia.
- A baseline fetal heart rate of 170 beats per minute persisting for more than 10 minutes is documented. The most common identifiable cause of this finding is:
- Umbilical cord compression
- Fetal head compression
- Maternal or intrauterine infection or fever
- Uteroplacental insufficiency
Correct answer: Maternal or intrauterine infection or fever
Fetal tachycardia is a baseline above 160 beats per minute for at least 10 minutes, and maternal or intrauterine infection with fever is its most common identifiable cause. Other contributors include maternal dehydration, hyperthyroidism, and beta-sympathomimetic or anticholinergic medications. Cord and head compression cause decelerations, not a sustained baseline rise.
- A fetal heart rate tracing demonstrates a normal baseline, moderate variability, no decelerations, and accelerations present. Using the NICHD three-tier system, this tracing is classified as:
- Category III
- Category I
- Category II
- Sinusoidal
Correct answer: Category I
A Category I tracing requires a normal baseline of 110 to 160 bpm, moderate variability, no late or variable decelerations, and either present or absent accelerations; early decelerations are allowed. Category I is reassuring and strongly predicts normal fetal acid-base balance at the time observed.
- Which description correctly characterizes a Category II fetal heart rate tracing in the NICHD system?
- Reassuring with no need for further evaluation
- Indeterminate, comprising all tracings that are not Category I or Category III
- Defined exclusively by a sinusoidal pattern
- Always predictive of abnormal fetal acid-base status
Correct answer: Indeterminate, comprising all tracings that are not Category I or Category III
Category II is the indeterminate group, encompassing every tracing that does not meet the strict criteria for Category I or Category III. These tracings are not predictive of abnormal acid-base status by themselves but require evaluation, continued surveillance, and often intrauterine resuscitation. Examples include minimal variability or recurrent variable decelerations with moderate variability.
- A Category III fetal heart rate tracing is defined by absent baseline variability accompanied by which additional finding?
- Marked variability
- Present accelerations
- Early decelerations only
- Recurrent late decelerations, recurrent variable decelerations, or bradycardia
Correct answer: Recurrent late decelerations, recurrent variable decelerations, or bradycardia
A Category III tracing is either a sinusoidal pattern, or absent variability with recurrent late decelerations, recurrent variable decelerations, or bradycardia. It is associated with abnormal fetal acid-base status and requires prompt evaluation and intervention, including intrauterine resuscitation and preparation for expedited delivery if it does not resolve.
- The NICHD three-tier classification system organizes fetal heart rate tracings into how many categories, and on what primary basis?
- Three categories based on the predicted likelihood of fetal acidemia
- Two categories based on baseline rate alone
- Five categories based on deceleration type
- Four categories based on variability alone
Correct answer: Three categories based on the predicted likelihood of fetal acidemia
The NICHD system places tracings into three categories that reflect the predicted likelihood of fetal acid-base disturbance at the time of observation. Category I is normal, Category II is indeterminate, and Category III is abnormal. The system standardizes communication so clinicians describe strips using a common language.
- A patient's strip shows a regular, smooth, undulating wave-like pattern with a frequency of 3 to 5 cycles per minute, an amplitude of about 10 beats per minute, and absent beat-to-beat variability. This is recognized as:
- Recurrent early decelerations
- A sinusoidal fetal heart rate
- Moderate variability
- A saltatory pattern
Correct answer: A sinusoidal fetal heart rate
A sinusoidal fetal heart rate is a smooth, regular sine-wave undulation of 3 to 5 cycles per minute with absent short-term variability. A true sustained sinusoidal pattern is a Category III tracing classically linked to severe fetal anemia, such as from fetomaternal hemorrhage or Rh isoimmunization, and requires urgent evaluation.
- A persistent sinusoidal fetal heart rate pattern most strongly suggests which underlying fetal condition requiring urgent workup?
- Maternal anxiety
- Mild head compression
- Severe fetal anemia
- Normal fetal sleep
Correct answer: Severe fetal anemia
A persistent sinusoidal pattern most strongly indicates severe fetal anemia, such as that caused by fetomaternal hemorrhage, alloimmunization, or vasa previa bleeding. Because it is a Category III tracing, it warrants urgent assessment with middle cerebral artery Doppler and consideration of expedited delivery. It is not a normal sleep finding.
- During labor, the fetal heart rate shows gradual decreases that mirror the contractions, with the nadir of each deceleration coinciding with the peak of the contraction. These decelerations are caused by:
- Umbilical cord compression
- Fetal head compression
- Fetal anemia
- Uteroplacental insufficiency
Correct answer: Fetal head compression
Early decelerations are gradual, symmetrical decreases that mirror the contraction, with the nadir aligning with the contraction peak. They are caused by fetal head compression, which triggers a vagal reflex slowing the heart. Early decelerations are benign and do not indicate fetal compromise.
- A nurse uses the VEAL CHOP mnemonic to interpret a strip. In this memory aid, what do the paired letters V and C represent?
- Variable decelerations correspond to head compression
- Variable decelerations correspond to cord compression
- Variable decelerations correspond to placental insufficiency
- Variable decelerations correspond to a sinusoidal pattern
Correct answer: Variable decelerations correspond to cord compression
In the VEAL CHOP mnemonic, V pairs with C: Variable decelerations are caused by Cord compression. The full aid is Variable-Cord compression, Early-Head compression, Accelerations-Okay, and Late-Placental insufficiency. It helps trainees quickly link deceleration type to its physiologic cause.
- The key feature that distinguishes a late deceleration from an early deceleration on a fetal monitor strip is:
- The depth of the heart rate drop
- The shape of the deceleration curve
- The baseline rate between contractions
- The timing of the deceleration relative to the contraction
Correct answer: The timing of the deceleration relative to the contraction
Timing relative to the contraction distinguishes the two. Early decelerations have their nadir at the contraction peak and reflect head compression, whereas late decelerations begin after the contraction starts, with the nadir occurring after the peak, reflecting uteroplacental insufficiency. Both are gradual in shape, so timing, not shape, is the differentiator.
- Recurrent late decelerations on a fetal heart rate tracing are most directly attributable to:
- Uteroplacental insufficiency and reduced fetal oxygenation
- Excess amniotic fluid volume
- Umbilical cord compression
- Rapid fetal descent and head compression
Correct answer: Uteroplacental insufficiency and reduced fetal oxygenation
Late decelerations are caused by uteroplacental insufficiency, in which the contraction transiently reduces oxygen delivery across the placenta, triggering a delayed drop in fetal heart rate. Contributing conditions include maternal hypotension, uterine tachysystole, preeclampsia, and placental abruption. They differ from variable decelerations, which arise from cord compression.
- Abrupt decreases in the fetal heart rate that vary in depth, duration, and timing relative to contractions, often with a rapid onset and recovery, are caused by:
- Maternal fever
- Fetal head compression
- Uteroplacental insufficiency
- Umbilical cord compression
Correct answer: Umbilical cord compression
Variable decelerations are abrupt drops, defined as onset to nadir in under 30 seconds, that vary in their relationship to contractions. They are caused by umbilical cord compression, frequently associated with oligohydramnios or a nuchal cord. Their abrupt onset distinguishes them from the gradual early and late deceleration patterns.
- A late deceleration is formally defined by NICHD criteria as a gradual decrease in fetal heart rate in which the time from onset to nadir is:
- Exactly 2 minutes
- Less than 30 seconds
- Less than 15 seconds
- 30 seconds or longer
Correct answer: 30 seconds or longer
A late deceleration is a gradual decrease, with onset to nadir of 30 seconds or longer, that occurs in association with a contraction and whose nadir follows the contraction peak. The 30-second-or-longer onset distinguishes gradual decelerations (early and late) from variable decelerations, which reach nadir in under 30 seconds.
- A transient fetal heart rate deceleration of at least 15 beats per minute below baseline that lasts 3 minutes is best classified as:
- A prolonged deceleration
- An early deceleration
- A variable deceleration
- A baseline change to bradycardia
Correct answer: A prolonged deceleration
A prolonged deceleration is a decrease of at least 15 beats per minute below baseline lasting at least 2 minutes but less than 10 minutes; a 3-minute deceleration fits this definition. If it persists 10 minutes or longer, it becomes a baseline change classified as bradycardia. Prolonged decelerations prompt immediate intrauterine resuscitation.
- A prolonged deceleration is occurring. After repositioning the patient, which set of interventions best reflects standard intrauterine resuscitation?
- Increase the oxytocin rate and encourage maternal pushing
- Administer an antipyretic and continue oxytocin
- Discontinue oxytocin, give an IV fluid bolus, and consider a uterine relaxant for tachysystole
- Restrict IV fluids and place the patient supine
Correct answer: Discontinue oxytocin, give an IV fluid bolus, and consider a uterine relaxant for tachysystole
Intrauterine resuscitation aims to optimize fetal oxygenation: reposition the patient (often lateral), discontinue uterotonics such as oxytocin, deliver an IV fluid bolus to correct hypotension, and consider a tocolytic for tachysystole. Supplemental oxygen may be used selectively. Increasing oxytocin or placing the patient supine would worsen the situation.
- A nonstress test performed at 38 weeks shows two accelerations of at least 15 beats per minute above baseline lasting at least 15 seconds within a 20-minute period. This result is interpreted as:
- Nonreactive
- Reactive
- Positive
- Equivocal
Correct answer: Reactive
A reactive nonstress test requires at least two accelerations of 15 beats per minute or more above baseline, each lasting at least 15 seconds, within a 20-minute window in a fetus at or beyond 32 weeks. A reactive result indicates fetal well-being and a low risk of acidemia. The terms positive and negative apply to the contraction stress test, not the nonstress test.
- A nonstress test shows no qualifying accelerations over 40 minutes despite vibroacoustic stimulation. This nonreactive result should prompt:
- Discharge with routine follow-up
- Immediate cesarean delivery
- No further evaluation
- Further testing such as a biophysical profile or contraction stress test
Correct answer: Further testing such as a biophysical profile or contraction stress test
A nonreactive nonstress test is not diagnostic of compromise because fetal sleep cycles commonly cause it. The appropriate next step is further evaluation with a biophysical profile or a contraction stress test. Proceeding directly to cesarean delivery without confirmatory testing is not warranted by a nonreactive result alone.
- A contraction stress test shows late decelerations following more than 50 percent of contractions. This result is interpreted as:
- Equivocal-hyperstimulatory
- Negative
- Unsatisfactory
- Positive
Correct answer: Positive
A positive contraction stress test is defined by late decelerations following 50 percent or more of contractions, even if fewer than three contractions occur in 10 minutes. A positive result suggests uteroplacental insufficiency and possible fetal compromise. A negative test, in contrast, shows no late or significant variable decelerations.
- A contraction stress test demonstrates three contractions in 10 minutes with no late or significant variable decelerations. This finding is documented as:
- Equivocal-suspicious
- Negative
- Unsatisfactory
- Positive
Correct answer: Negative
A negative contraction stress test shows adequate contractions (at least three in 10 minutes) with no late or significant variable decelerations, indicating reassuring uteroplacental function. A positive test shows recurrent late decelerations. The test deliberately challenges the fetus with contractions to unmask uteroplacental insufficiency.
- During a contraction stress test, late decelerations appear in the presence of contractions occurring more frequently than every 2 minutes. How is this result classified?
- Negative
- Reactive
- Positive
- Equivocal-hyperstimulatory
Correct answer: Equivocal-hyperstimulatory
An equivocal-hyperstimulatory result occurs when fetal heart rate decelerations appear in the setting of excessively frequent contractions, more often than every 2 minutes or lasting longer than 90 seconds. Because the decelerations may be an artifact of tachysystole rather than true uteroplacental insufficiency, the test cannot be called positive and is typically repeated.
- A biophysical profile evaluates five components. Which combination correctly lists the four ultrasound parameters added to the nonstress test?
- Fetal breathing, fetal weight, placental location, and cervical length
- Placental grade, fetal weight, cord coiling, and fetal heart rate
- Amniotic fluid index, fetal sex, fetal tone, and uterine artery flow
- Fetal breathing movements, gross body movement, fetal tone, and amniotic fluid volume
Correct answer: Fetal breathing movements, gross body movement, fetal tone, and amniotic fluid volume
The biophysical profile combines the nonstress test with four ultrasound parameters: fetal breathing movements, gross body movements, fetal muscle tone, and amniotic fluid volume. Each of the five components is scored 0 or 2, for a maximum of 10. It provides a fuller picture of acute and chronic fetal status than the nonstress test alone.
- A biophysical profile score of 8 out of 10 with normal amniotic fluid volume is interpreted as:
- Indeterminate, requires immediate cesarean
- Abnormal, consider delivery
- Normal, generally reassuring
- Equivocal, repeat in 24 hours
Correct answer: Normal, generally reassuring
A biophysical profile of 8 out of 10 with normal amniotic fluid (or 10 out of 10) is a normal, reassuring result with a low risk of fetal asphyxia. A score of 6 is equivocal and often repeated, while a score of 4 or less is abnormal and prompts consideration of delivery. Oligohydramnios lowers the reassurance regardless of the other components.
- In the biophysical profile, a normal (2-point) score for amniotic fluid volume is generally credited when there is at least:
- An amniotic fluid index of at least 25 centimeters
- A single pocket measuring at least 0.5 centimeters
- A single deepest vertical pocket measuring at least 2 centimeters
- No measurable pocket of fluid
Correct answer: A single deepest vertical pocket measuring at least 2 centimeters
Amniotic fluid earns 2 points when at least one vertical pocket measures 2 centimeters or more in depth (with adequate width). Reduced fluid (oligohydramnios) suggests chronic uteroplacental insufficiency and lowers the score, prompting closer surveillance. An index of 25 centimeters or more would instead indicate polyhydramnios.
- During the second stage of labor with a Category II tracing, the clinician applies digital pressure to the fetal scalp and observes an acceleration of the fetal heart rate. This response indicates:
- A fetal pH likely above 7.20, suggesting absence of acidemia
- Severe fetal acidemia requiring immediate delivery
- An equipment malfunction
- Maternal rather than fetal heart rate is being recorded
Correct answer: A fetal pH likely above 7.20, suggesting absence of acidemia
Fetal scalp stimulation that produces an acceleration of at least 15 beats per minute for at least 15 seconds reliably predicts a fetal scalp pH above 7.20, effectively ruling out significant acidemia at that moment. It is a noninvasive way to assess fetal status when a tracing is indeterminate, reducing the need for fetal scalp blood sampling.
- A fetal scalp blood sample is obtained during labor. Which pH value is considered normal and consistent with the absence of acidemia?
- 7.05
- 7.10
- Greater than 7.25
- 7.18
Correct answer: Greater than 7.25
A fetal scalp blood pH greater than 7.25 is normal and indicates the absence of significant acidemia, supporting continued monitoring. A value between 7.21 and 7.25 is preacidemic and prompts repeat sampling, while a pH below 7.21 indicates acidemia and consideration of immediate delivery.
- Significant fetal metabolic acidemia at birth is most consistently defined by an umbilical artery pH below 7.0 together with:
- A normal lactate level
- An elevated bicarbonate level
- A base deficit of 12 mmol per liter or greater
- A base deficit less than 4 mmol per liter
Correct answer: A base deficit of 12 mmol per liter or greater
Significant cord metabolic acidemia is defined by an umbilical artery pH below 7.0 combined with a base deficit of at least 12 mmol per liter. The combination distinguishes a metabolic process, with accumulated fixed acid and consumed buffer, from a transient respiratory acidemia that resolves quickly after birth. This threshold is associated with increased risk of neonatal encephalopathy.
- Amnioinfusion during labor is most appropriately used to relieve which fetal heart rate pattern?
- Fetal tachycardia from maternal fever
- Recurrent variable decelerations thought to be due to cord compression
- A sinusoidal pattern from fetal anemia
- Recurrent late decelerations from placental insufficiency
Correct answer: Recurrent variable decelerations thought to be due to cord compression
Amnioinfusion, the instillation of warmed normal saline into the uterine cavity, is used to relieve recurrent variable decelerations caused by umbilical cord compression, often in the setting of oligohydramnios. By restoring a fluid cushion around the cord, it reduces compression. It does not correct late decelerations, which stem from placental insufficiency rather than cord compression.
- Which statement about amnioinfusion is accurate regarding its established clinical role?
- It increases the risk of cord compression
- It is the first-line treatment for recurrent late decelerations
- It is primarily used to treat fetal tachycardia
- It is an evidence-supported intervention for repetitive variable decelerations from cord compression
Correct answer: It is an evidence-supported intervention for repetitive variable decelerations from cord compression
Amnioinfusion is an evidence-supported intervention for repetitive variable decelerations caused by cord compression, where it replenishes amniotic fluid and reduces cord compression episodes. It is not effective for late decelerations, which reflect uteroplacental insufficiency, nor is it a treatment for fetal tachycardia.
- A laboring patient is in the supine position when the fetal heart rate develops a prolonged deceleration. The most likely mechanism and best first action are:
- Fetal head compression; encourage pushing
- Fetal anemia; prepare for transfusion
- Aortocaval compression reducing placental perfusion; reposition to the lateral side
- Cord prolapse; increase oxytocin
Correct answer: Aortocaval compression reducing placental perfusion; reposition to the lateral side
In the supine position, the gravid uterus compresses the inferior vena cava and aorta, reducing maternal venous return and uteroplacental perfusion and causing a prolonged deceleration. Repositioning to a lateral position relieves the aortocaval compression and is the first intrauterine resuscitation step, often restoring the baseline promptly.
- A fetal heart rate tracing shows a normal baseline of 140, moderate variability, and recurrent variable decelerations occurring with more than half of contractions over 20 minutes. This tracing is best categorized as:
- Sinusoidal
- Category I
- Category III
- Category II
Correct answer: Category II
Recurrent variable decelerations with an otherwise normal baseline and moderate variability place this tracing in Category II, the indeterminate group. The preserved moderate variability is reassuring against acidemia, but the recurrent decelerations require ongoing evaluation and intrauterine resuscitation. It is not Category III because variability is moderate, not absent.
- Decelerations are formally documented as recurrent when they occur with what proportion of uterine contractions during a 20-minute segment?
- 100 percent of contractions
- At least 25 percent of contractions
- At least 50 percent of contractions
- At least 75 percent of contractions
Correct answer: At least 50 percent of contractions
By NICHD definition, decelerations are recurrent when they occur with at least 50 percent of uterine contractions in any 20-minute window; below that threshold they are intermittent. This distinction matters because recurrent late or variable decelerations carry greater concern for fetal compromise than occasional intermittent ones.
- A fetus near term shows a baseline of 145 with moderate variability and recurrent late decelerations. Compared with a fetus showing recurrent late decelerations and absent variability, the preserved moderate variability primarily indicates:
- The fetus is already severely acidemic
- The fetus is currently maintaining adequate central oxygenation despite the decelerations
- Immediate cesarean delivery is mandatory regardless of response to resuscitation
- The decelerations are artifact
Correct answer: The fetus is currently maintaining adequate central oxygenation despite the decelerations
Moderate variability indicates an intact, well-oxygenated fetal autonomic nervous system, so its presence alongside late decelerations suggests the fetus is currently compensating and not acidemic. The same late decelerations with absent variability would instead define a Category III pattern strongly associated with acidemia. Variability is the key modifier of how worrisome decelerations are.
- When external Doppler monitoring intermittently doubles a low fetal heart rate or appears to track the maternal pulse, the nurse should first:
- Verify that the fetal rather than maternal heart rate is being recorded, such as by palpating the maternal pulse or applying a fetal scalp electrode
- Administer a tocolytic
- Document confirmed fetal bradycardia and prepare for delivery
- Increase the paper speed of the monitor
Correct answer: Verify that the fetal rather than maternal heart rate is being recorded, such as by palpating the maternal pulse or applying a fetal scalp electrode
External Doppler can mistakenly record the maternal heart rate or halve or double the signal, mimicking fetal bradycardia or tachycardia. The nurse should first confirm the source by palpating or recording the maternal pulse simultaneously and, if needed, applying a fetal scalp electrode for an accurate fetal signal before acting on the rate.
- A fetal heart rate tracing shows accelerations present, moderate variability, and occasional early decelerations only. Using the NICHD system, this tracing is classified as:
- Category II
- Category III
- Category I
- Indeterminate-hyperstimulatory
Correct answer: Category I
Early decelerations are explicitly permitted within a Category I tracing. With a normal baseline, moderate variability, accelerations present, and no late or variable decelerations, the strip meets all Category I criteria and is reassuring. Early decelerations reflect benign head compression and do not downgrade the category.
- The first stage of labor is divided into a latent phase and an active phase. According to the 2024 ACOG First and Second Stage Labor Management guideline, the active phase of the first stage is now considered to begin at what cervical dilation?
- 8 centimeters
- 4 centimeters
- 3 centimeters
- 6 centimeters
Correct answer: 6 centimeters
The active phase of the first stage of labor is now considered to begin at 6 centimeters of dilation. ACOG adopted the Consortium on Safe Labor (Zhang) data, which showed labor often does not accelerate until 6 cm, replacing the older Friedman threshold of 4 cm. Using 6 cm prevents premature diagnosis of arrest and unnecessary cesarean delivery in the slower 4-to-6 cm window.
- A nurse is teaching a new graduate about the stages of labor. The interval from full cervical dilation (10 cm) to the birth of the infant is correctly identified as which stage?
- Second stage
- Third stage
- Fourth stage
- First stage
Correct answer: Second stage
The second stage of labor extends from complete cervical dilation (10 cm) until the birth of the infant. The first stage ends at full dilation, the third stage spans birth of the infant to delivery of the placenta, and the fourth stage is the first one to two hours of immediate recovery after placental delivery.
- During the third stage of labor, which of the following is a classic sign that the placenta has separated from the uterine wall and is ready to be delivered?
- Softening and ballooning of the uterine fundus
- Cessation of all vaginal bleeding
- Retraction of the umbilical cord up into the vagina
- A sudden gush of blood with lengthening of the visible umbilical cord
Correct answer: A sudden gush of blood with lengthening of the visible umbilical cord
A sudden gush of blood accompanied by lengthening of the visible umbilical cord signals placental separation. The other classic signs are the uterus rising and becoming firm and globular and a change in fundal shape. Retraction of the cord and a soft, boggy fundus are not signs of separation; cessation of all bleeding is not expected during the third stage.
- A nurse performs Leopold maneuvers on a term patient. The purpose of the FIRST Leopold maneuver, palpating the uterine fundus, is to determine which of the following?
- Which fetal pole (head or breech) occupies the fundus
- The attitude of the fetal head (flexed or extended)
- Whether the presenting part is engaged
- The location of the fetal back
Correct answer: Which fetal pole (head or breech) occupies the fundus
The first Leopold maneuver palpates the fundus to identify which fetal pole occupies it: the breech feels soft, broad, and irregular, while the head feels firm, round, and ballottable. The second maneuver locates the fetal back, the third (Pawlik grasp) assesses the presenting part and engagement, and the fourth assesses cephalic attitude and descent.
- While performing Leopold maneuvers, the nurse palpates a firm, round, ballottable mass at the fundus and a smooth, broad surface on the maternal left side. These findings are most consistent with which fetal position?
- Transverse lie
- Breech presentation, fetal back on the left
- Cephalic presentation, fetal back on the left
- Cephalic presentation, fetal back on the right
Correct answer: Breech presentation, fetal back on the left
A firm, round, ballottable mass in the fundus indicates the fetal head is up, making this a breech presentation, and the smooth broad surface on the left identifies the fetal back on the left. A ballottable head in the fundus rules out cephalic presentation, and a definable longitudinal axis with poles palpable rules out transverse lie.
- Precipitous labor is defined as labor and birth that are completed in a notably short period. Which of the following best describes the accepted definition of precipitous labor?
- Cervical dilation of more than 1 cm per hour
- Total labor lasting less than 8 hours
- Expulsion of the fetus within less than 3 hours of the onset of regular contractions
- Second stage lasting less than 30 minutes
Correct answer: Expulsion of the fetus within less than 3 hours of the onset of regular contractions
Precipitous labor is defined as expulsion of the fetus within less than 3 hours from the onset of regular contractions. It carries risks of perineal and cervical lacerations, postpartum hemorrhage from uterine atony, and fetal hypoxia or birth trauma from the rapid descent. The other intervals do not meet the standard definition.
- A multiparous patient arrives in triage stating her contractions began 90 minutes ago and are now constant. Examination reveals 10 cm dilation with the fetal head crowning. Recognizing precipitous birth, the nurse's MOST appropriate action is to:
- Instruct the patient to cross her legs and avoid pushing until a provider arrives
- Stay with the patient, call for help, and support the perineum and emerging head
- Apply firm fundal pressure to slow the descent
- Transfer the patient immediately to the operating room
Correct answer: Stay with the patient, call for help, and support the perineum and emerging head
The nurse should stay with the patient, call for help, and provide gentle perineal support to control the emerging head and prevent rapid expulsion and laceration. Telling a patient to cross her legs or hold back delivery is unsafe and can cause harm, fundal pressure during crowning is contraindicated, and there is no time to transfer to the operating room when the head is crowning.
- The McRoberts maneuver is the recommended first-line intervention for shoulder dystocia. This maneuver involves which of the following actions?
- Sharp hyperflexion of the maternal thighs onto the abdomen
- Rotating the posterior shoulder 180 degrees
- Replacing the fetal head into the pelvis for cesarean
- Applying downward traction on the fetal head
Correct answer: Sharp hyperflexion of the maternal thighs onto the abdomen
The McRoberts maneuver involves sharp hyperflexion of the maternal thighs against the abdomen, which rotates the symphysis pubis cephalad and flattens the sacral promontory to free the impacted anterior shoulder. Downward traction on the head is avoided because it increases brachial plexus injury risk; posterior shoulder rotation (Woods screw) and the Zavanelli replacement maneuver are later-step interventions.
- When shoulder dystocia is encountered and McRoberts positioning alone is unsuccessful, the assistant is typically directed to apply suprapubic pressure. Suprapubic pressure is correctly applied in which direction?
- Toward the maternal back to widen the outlet
- Downward and laterally over the symphysis to displace the anterior shoulder
- Directly on the uterine fundus to push the fetus down
- Upward toward the maternal head to lift the uterus
Correct answer: Downward and laterally over the symphysis to displace the anterior shoulder
Suprapubic pressure is applied just above the symphysis pubis, directed downward and obliquely toward the side the fetal back faces, to adduct and displace the impacted anterior shoulder beneath the pubic bone. Fundal pressure is specifically contraindicated because it worsens the impaction and raises the risk of uterine rupture and brachial plexus injury.
- A nurse is reviewing internal rotational maneuvers used for shoulder dystocia when external maneuvers fail. Which of the following is an example of an internal rotational maneuver?
- Woods corkscrew (Woods screw) maneuver
- McRoberts maneuver
- Suprapubic pressure
- Gaskin all-fours position
Correct answer: Woods corkscrew (Woods screw) maneuver
The Woods corkscrew (Woods screw) maneuver is an internal rotational technique in which the clinician rotates the posterior shoulder 180 degrees to dislodge the impacted anterior shoulder. McRoberts and suprapubic pressure are external maneuvers, and the Gaskin all-fours is a maternal repositioning maneuver, not an internal rotation.
- Delivery of the posterior arm is an internal maneuver for shoulder dystocia. The clinician accomplishes this by:
- Pulling firmly on the fetal head until the shoulder releases
- Sweeping the posterior fetal arm across the chest and delivering it
- Pressing on the fundus while the mother pushes
- Flexing the maternal hips toward the chest
Correct answer: Sweeping the posterior fetal arm across the chest and delivering it
Delivery of the posterior arm is performed by inserting a hand, locating the posterior arm, flexing it at the elbow, and sweeping it across the fetal chest and out, which reduces the bisacromial diameter and frees the impaction. Traction on the head risks brachial plexus injury, fundal pressure is contraindicated, and hip flexion describes the external McRoberts maneuver.
- Which documented sign during a vaginal birth is most classically associated with shoulder dystocia and signals the need to initiate maneuvers immediately?
- A prolonged second stage with no descent
- Retraction of the fetal head back against the perineum (turtle sign)
- Spontaneous restitution of the head
- Bright red bleeding after delivery of the head
Correct answer: Retraction of the fetal head back against the perineum (turtle sign)
The turtle sign, retraction of the delivered fetal head tightly against the maternal perineum, is the classic indicator of shoulder dystocia caused by the anterior shoulder impacting behind the symphysis. Normal restitution and external rotation are expected findings, while bleeding and a stalled second stage are nonspecific and do not by themselves indicate shoulder dystocia.
- Meconium-stained amniotic fluid is identified at the time of membrane rupture in a term laboring patient. The current AAP/AHA Neonatal Resuscitation Program guidance directs that a NON-vigorous newborn born through meconium should initially receive:
- Immediate chest compressions
- Routine intubation and endotracheal suctioning before any breaths
- The same initial steps as any newborn, with positive-pressure ventilation if not breathing
- Deep nasopharyngeal suctioning on the perineum before delivery of the shoulders
Correct answer: The same initial steps as any newborn, with positive-pressure ventilation if not breathing
A non-vigorous newborn born through meconium-stained fluid receives the standard initial steps of resuscitation, including positive-pressure ventilation if apneic or bradycardic, rather than routine tracheal suctioning. The NRP no longer recommends routine intubation for suctioning, and intrapartum suctioning on the perineum was abandoned because it does not reduce meconium aspiration syndrome.
- Thick meconium-stained amniotic fluid is noted during labor. From an obstetric standpoint, the most important reason this finding raises concern is that it may indicate:
- Imminent precipitous delivery
- Possible fetal hypoxic stress, warranting closer fetal heart rate surveillance
- An automatic indication for immediate cesarean delivery
- A normal finding in all post-term pregnancies requiring no action
Correct answer: Possible fetal hypoxic stress, warranting closer fetal heart rate surveillance
Meconium-stained fluid can reflect fetal hypoxic stress and is associated with meconium aspiration syndrome, so it warrants continuous fetal heart rate monitoring and readiness for neonatal resuscitation. It is not by itself an indication for immediate cesarean delivery, and although passage of meconium becomes more common with advancing gestation, it should never be dismissed as requiring no action.
- Cervical dilation is one of the parameters assessed during a labor examination. Full cervical dilation, marking the transition from the first to the second stage of labor, is documented at:
- 12 centimeters
- 8 centimeters
- 10 centimeters
- 6 centimeters
Correct answer: 10 centimeters
Full (complete) cervical dilation is 10 centimeters, the point at which the cervix can no longer be palpated around the presenting part and the second stage of labor begins. Six centimeters now marks the onset of the active phase, but the cervix continues dilating to 10 cm before pushing is appropriate.
- Cervical ripening is often performed before oxytocin induction when the cervix is unfavorable. Which of the following is a prostaglandin E2 agent used for cervical ripening?
- Terbutaline
- Dinoprostone
- Magnesium sulfate
- Indomethacin
Correct answer: Dinoprostone
Dinoprostone is a prostaglandin E2 agent available as a vaginal insert or gel used to ripen an unfavorable cervix before induction. Misoprostol is a prostaglandin E1 analog used for the same purpose, whereas magnesium sulfate and terbutaline are used to relax the uterus and indomethacin is a tocolytic prostaglandin inhibitor, none of which ripen the cervix.
- A patient with an unfavorable cervix and a prior cesarean delivery is being evaluated for induction. The nurse recognizes that which cervical ripening agent is generally AVOIDED in patients with a prior uterine scar because of increased uterine rupture risk?
- A transcervical Foley balloon catheter
- Misoprostol (prostaglandin E1)
- Membrane stripping
- Mechanical osmotic dilators
Correct answer: Misoprostol (prostaglandin E1)
Misoprostol (prostaglandin E1) is generally avoided for cervical ripening in patients with a prior cesarean or major uterine surgery because it increases the risk of uterine rupture. Mechanical methods such as a transcervical Foley balloon and osmotic dilators are preferred in scarred uteri because they ripen the cervix without the hyperstimulation risk associated with prostaglandins.
- A mechanical method of cervical ripening uses a transcervical balloon catheter. The balloon promotes ripening primarily by which mechanism?
- Blocking oxytocin uptake at the cervix
- Dehydrating the cervix to soften it
- Applying direct pressure on the internal os and stimulating local prostaglandin release
- Directly stimulating prostaglandin receptors in the myometrium
Correct answer: Applying direct pressure on the internal os and stimulating local prostaglandin release
A transcervical (Foley or double-balloon) catheter ripens the cervix by exerting direct mechanical pressure against the internal os, which stretches the lower uterine segment and stimulates endogenous local prostaglandin and oxytocin release. It does not pharmacologically activate prostaglandin receptors or block oxytocin, and it does not work by dehydration.
- A nurse is initiating an oxytocin infusion for labor induction. Which assessment finding requires the nurse to STOP the oxytocin infusion?
- Contractions every 3 minutes lasting 60 seconds
- A reactive fetal heart rate with moderate variability
- Tachysystole of more than 5 contractions in 10 minutes with a Category II or III tracing
- Maternal report of increasing contraction discomfort
Correct answer: Tachysystole of more than 5 contractions in 10 minutes with a Category II or III tracing
Tachysystole, more than five contractions in a 10-minute window averaged over 30 minutes, accompanied by a Category II or III tracing requires stopping the oxytocin to restore uteroplacental perfusion. Contractions every 3 minutes lasting about 60 seconds is the goal of induction, moderate variability is reassuring, and discomfort alone is expected and managed with analgesia rather than discontinuation.
- When titrating an oxytocin infusion for induction, the nurse adjusts the rate to achieve which target contraction pattern?
- Contractions every 6 to 7 minutes
- Contractions every 1 minute lasting 90 seconds
- Adequate contractions about every 2 to 3 minutes with adequate resting tone between them
- Continuous uterine tone with no relaxation
Correct answer: Adequate contractions about every 2 to 3 minutes with adequate resting tone between them
Oxytocin is titrated to produce adequate contractions roughly every 2 to 3 minutes that allow the uterus to relax fully between them, preserving placental perfusion. Contractions more frequent than every 2 minutes or lack of relaxation indicate tachysystole and risk fetal hypoxia, while contractions every 6 to 7 minutes are inadequate to progress labor.
- A patient receiving an oxytocin infusion at high doses for several hours suddenly develops a headache, confusion, and a urine output of 15 mL/hour. The nurse recognizes this as a sign of which oxytocin-related complication?
- Anaphylaxis
- Uterine atony
- Local anesthetic toxicity
- Water intoxication (hyponatremia)
Correct answer: Water intoxication (hyponatremia)
Water intoxication with dilutional hyponatremia results from the antidiuretic effect of high-dose, prolonged oxytocin, producing headache, confusion, and decreased urine output. It is distinct from uterine atony, which causes hemorrhage, and is unrelated to anaphylaxis or local anesthetic toxicity; management includes reducing the oxytocin and limiting free water.
- Most candidates for a trial of labor after cesarean (TOLAC) share a key feature in their surgical history. According to ACOG, which prior incision type makes a patient an appropriate VBAC candidate?
- Low transverse uterine incision
- Prior transfundal uterine surgery
- T-shaped or J-shaped uterine incision
- Classical (vertical) uterine incision
Correct answer: Low transverse uterine incision
A prior low transverse uterine incision is associated with a uterine rupture risk of less than 1 percent and makes most patients with one prior cesarean appropriate VBAC candidates. A classical or T/J-shaped incision and prior transfundal surgery carry much higher rupture risk and are contraindications to TOLAC.
- A patient requesting a trial of labor after cesarean asks the nurse why a planned home birth was discouraged. The nurse's response is grounded in which ACOG safety requirement for TOLAC?
- TOLAC is only permitted before 37 weeks of gestation
- TOLAC requires routine intrauterine pressure catheter placement at admission
- TOLAC requires twice-daily nonstress testing in the third trimester
- TOLAC should occur where emergency cesarean and staff are immediately available
Correct answer: TOLAC should occur where emergency cesarean and staff are immediately available
ACOG recommends that TOLAC be conducted in a facility where emergency cesarean delivery and the necessary personnel and resources are immediately available, because uterine rupture can occur rapidly and threaten mother and fetus. There is no requirement for twice-daily antenatal testing, a gestational age cap before term, or routine intrauterine pressure catheter use.
- During a trial of labor after cesarean, the patient suddenly reports sharp, constant abdominal pain, the fetal heart rate shows a prolonged deceleration, and the previously palpable presenting part is no longer felt on examination. These findings are most concerning for:
- Uterine rupture
- Amniotic fluid embolism
- Placenta previa
- Precipitous labor
Correct answer: Uterine rupture
Uterine rupture is the most concerning diagnosis: classic signs include a sudden abnormal fetal heart rate (often a prolonged deceleration or bradycardia), constant abdominal pain, loss of fetal station with the presenting part receding, and sometimes hemodynamic instability. Placenta previa causes painless bleeding, amniotic fluid embolism presents with cardiorespiratory collapse and coagulopathy, and precipitous labor is rapid normal birth.
- Which of the following is considered the MOST reliable and earliest sign of uterine rupture during labor?
- Maternal tachycardia
- A sudden, nonreassuring change in the fetal heart rate, such as prolonged bradycardia
- Vaginal bleeding
- Cessation of contractions
Correct answer: A sudden, nonreassuring change in the fetal heart rate, such as prolonged bradycardia
A sudden nonreassuring fetal heart rate change, most often a prolonged deceleration or bradycardia, is the most common and earliest reliable sign of uterine rupture. Loss of contractions, vaginal bleeding, and maternal tachycardia may occur but are less consistent and frequently appear later than the fetal heart rate abnormality.
- Umbilical cord prolapse is an obstetric emergency requiring immediate action. When overt cord prolapse is identified, the nurse's PRIORITY intervention is to:
- Attempt to gently reduce the cord back into the uterus
- Clamp and cut the prolapsed cord
- Use a sterile gloved hand to lift the presenting part off the cord and relieve compression
- Have the patient ambulate to relieve pressure
Correct answer: Use a sterile gloved hand to lift the presenting part off the cord and relieve compression
The priority is to manually elevate the presenting part off the cord with a sterile gloved hand to relieve compression and restore fetal oxygenation while preparing for emergency cesarean delivery. The cord is never pushed back in or clamped, and the patient is repositioned (knee-chest or Trendelenburg), not ambulated.
- In addition to manually elevating the presenting part, which maternal position is recommended to relieve pressure on a prolapsed umbilical cord while awaiting emergency delivery?
- Knee-chest or Trendelenburg position
- High Fowler position
- Right lateral with the head of bed elevated
- Flat supine position
Correct answer: Knee-chest or Trendelenburg position
The knee-chest or steep Trendelenburg position uses gravity to shift the presenting part away from the prolapsed cord, reducing compression and improving fetal perfusion. A supine flat or high Fowler position would not relieve and could worsen cord compression, and simple lateral positioning is insufficient for an overt prolapse.
- A risk factor that predisposes a laboring patient to umbilical cord prolapse is:
- A well-engaged fetal head at term
- Oligohydramnios with a low-lying placenta
- An unengaged presenting part with spontaneous or artificial rupture of membranes
- A nulliparous patient in early latent labor
Correct answer: An unengaged presenting part with spontaneous or artificial rupture of membranes
An unengaged or high presenting part at the time of membrane rupture, especially with polyhydramnios, malpresentation, or a long cord, predisposes to cord prolapse because the cord can slip below the presenting part. A well-engaged head fills the pelvic inlet and protects against prolapse, and oligohydramnios reduces, rather than increases, the fluid that can sweep the cord down.
- Amniotic fluid embolism is a rare but catastrophic intrapartum emergency. Which triad of clinical features classically characterizes amniotic fluid embolism?
- Sudden hypoxia, hypotension/cardiovascular collapse, and coagulopathy (DIC)
- Painless bleeding, soft uterus, and fetal tachycardia
- Fever, uterine tenderness, and foul-smelling fluid
- Hypertension, proteinuria, and edema
Correct answer: Sudden hypoxia, hypotension/cardiovascular collapse, and coagulopathy (DIC)
Amniotic fluid embolism classically presents as the abrupt triad of hypoxia, hemodynamic collapse with hypotension, and coagulopathy/disseminated intravascular coagulation, often during labor or immediately postpartum. The hypertension-proteinuria-edema picture describes preeclampsia, fever with tender uterus suggests chorioamnionitis, and painless bleeding suggests placenta previa.
- A laboring patient suddenly becomes dyspneic and cyanotic, loses consciousness, and develops profuse bleeding from her IV sites minutes later. The team suspects amniotic fluid embolism. The most appropriate immediate management is:
- Place the patient in left lateral position and give oral fluids
- Administer magnesium sulfate for seizure prophylaxis
- Administer a tocolytic and continue observation
- Provide aggressive cardiopulmonary support and prepare for resuscitation and blood product replacement
Correct answer: Provide aggressive cardiopulmonary support and prepare for resuscitation and blood product replacement
Amniotic fluid embolism is managed with aggressive, supportive resuscitation: high-quality cardiopulmonary support, oxygenation, vasopressors, and massive transfusion or blood product replacement to treat the accompanying coagulopathy, with readiness for perimortem cesarean if cardiac arrest occurs. There is no specific cure; tocolytics, oral fluids, and magnesium sulfate are not appropriate emergency treatments for this condition.
- Group B streptococcus (GBS) intrapartum antibiotic prophylaxis is indicated for a laboring patient with a positive antenatal GBS screen. The recommended first-line antibiotic is:
- Erythromycin
- Clindamycin
- Penicillin G
- Vancomycin
Correct answer: Penicillin G
Penicillin G is the recommended first-line agent for intrapartum GBS prophylaxis, with ampicillin as an acceptable alternative. Clindamycin and vancomycin are reserved for patients with severe penicillin allergy and only after susceptibility is confirmed (for clindamycin), and erythromycin is no longer recommended due to resistance.
- For GBS prophylaxis to be considered adequate in reducing early-onset neonatal disease, the recommended minimum duration of intrapartum antibiotics before delivery is at least:
- 2 hours
- 4 hours
- 8 hours
- 1 hour
Correct answer: 4 hours
At least 4 hours of intrapartum antibiotic prophylaxis before delivery is recommended to be considered adequate for preventing early-onset neonatal GBS disease, allowing therapeutic drug levels in the fetal circulation and amniotic fluid. Shorter intervals provide incomplete coverage, which is why early antibiotic initiation in labor is emphasized for GBS-positive patients.
- A GBS-positive patient in labor reports a history of anaphylaxis to penicillin. Antimicrobial susceptibility testing on the GBS isolate shows clindamycin resistance. The appropriate intrapartum prophylaxis is:
- Vancomycin
- Penicillin G at a reduced dose
- No prophylaxis is needed
- Cefazolin
Correct answer: Vancomycin
For a patient at high risk for anaphylaxis to penicillin whose GBS isolate is resistant to clindamycin, vancomycin is the recommended intrapartum agent. Penicillin and cefazolin (a cephalosporin) are avoided when there is a history of anaphylaxis due to cross-reactivity risk, and prophylaxis remains indicated because the patient screened positive.
- An epidural is placed for labor analgesia. The most common maternal side effect the nurse should anticipate and assess for shortly after dosing is:
- Hypertension
- Maternal hypotension
- Respiratory depression
- Hyperthermia within minutes
Correct answer: Maternal hypotension
Maternal hypotension is the most common side effect of epidural analgesia because sympathetic blockade causes vasodilation; it can in turn reduce uteroplacental perfusion and cause fetal heart rate changes. Nurses pre-hydrate and monitor blood pressure closely, treating hypotension with fluids, lateral positioning, and a vasopressor such as ephedrine or phenylephrine if needed.
- Twenty minutes after an epidural bolus, a laboring patient's blood pressure drops to 84/50 mm Hg and the fetal heart rate shows a prolonged deceleration. After ensuring the patient is in a lateral position and increasing IV fluids, which medication is most appropriate to treat the hypotension?
- Magnesium sulfate
- Labetalol
- Ephedrine or phenylephrine
- Terbutaline
Correct answer: Ephedrine or phenylephrine
Ephedrine or phenylephrine is the appropriate vasopressor to correct epidural-induced maternal hypotension and restore uteroplacental perfusion after positioning and IV fluid bolus. Labetalol lowers blood pressure (the opposite of what is needed), magnesium sulfate treats seizures, and terbutaline is a tocolytic that itself causes hypotension and tachycardia.
- A nurse caring for a patient with a labor epidural notes a temperature rising over several hours of analgesia. The nurse understands that prolonged epidural analgesia is associated with which maternal effect?
- Sudden hypertension
- Maternal hyperthermia (epidural-related fever)
- Acute hypoglycemia
- Profound bradycardia
Correct answer: Maternal hyperthermia (epidural-related fever)
Epidural analgesia is associated with maternal hyperthermia, a noninfectious low-grade fever that develops over hours of labor and must be distinguished from chorioamnionitis. It can prompt sepsis evaluations in mother and newborn, so the nurse correlates the temperature trend with other infection signs rather than assuming infection automatically; bradycardia, hypoglycemia, and hypertension are not characteristic epidural effects.
- A laboring patient at 6 cm has been making no cervical change for 4 hours despite adequate contractions confirmed by intrauterine pressure catheter. This pattern is best classified as:
- Prolonged latent phase
- Precipitous labor
- Protracted descent
- Active phase arrest
Correct answer: Active phase arrest
Active phase arrest is diagnosed when a patient at 6 cm or more with ruptured membranes has no cervical change for 4 hours or more with adequate contractions (or 6 hours or more with inadequate contractions). A prolonged latent phase occurs before 6 cm, precipitous labor is excessively rapid, and protracted descent refers to slow second-stage fetal descent, not first-stage dilation.
- During the second stage of labor, the fetal head delivers, then spontaneously turns to one side so the face aligns with one of the maternal thighs. This movement is correctly identified as which cardinal movement of labor?
- Engagement
- Extension
- Restitution (external rotation)
- Internal rotation
Correct answer: Restitution (external rotation)
Restitution, followed by external rotation, is the cardinal movement in which the delivered head untwists and rotates so the shoulders can align with the anteroposterior diameter of the outlet. Engagement, internal rotation, and extension occur earlier in the sequence as the head descends and delivers; restitution happens after the head is out.
- A patient in active labor is being monitored with external electronic fetal monitoring. The tracing shows a baseline of 140 beats per minute, moderate variability, accelerations present, and no decelerations. This pattern is correctly categorized as:
- Category II (indeterminate)
- Sinusoidal
- Category I (normal)
- Category III (abnormal)
Correct answer: Category I (normal)
A baseline of 140 with moderate variability, present accelerations, and no decelerations meets all criteria for a Category I tracing, which is normal and strongly predictive of normal fetal acid-base status. Category II is indeterminate, Category III reflects an abnormal pattern with absent variability plus recurrent decelerations or a sinusoidal pattern, neither of which is present here.
- While managing an oxytocin induction, the nurse observes recurrent late decelerations with minimal variability, classifying the strip as Category II. Among the following, which is the MOST appropriate first nursing action?
- Reposition the patient to lateral, reduce or stop oxytocin, and give IV fluids and oxygen
- Apply fundal pressure
- Prepare immediately for forceps delivery
- Increase the oxytocin rate to speed delivery
Correct answer: Reposition the patient to lateral, reduce or stop oxytocin, and give IV fluids and oxygen
For recurrent late decelerations, intrauterine resuscitation is first-line: lateral repositioning, reducing or stopping oxytocin, giving an IV fluid bolus, and administering oxygen to improve uteroplacental perfusion. Increasing oxytocin would worsen the hypoxia, fundal pressure is contraindicated, and operative delivery is considered only if the pattern does not improve and birth is indicated.
- A nurse assists with an amniotomy (artificial rupture of membranes) to augment labor. Immediately after the procedure, the highest-priority nursing assessment is:
- Maternal temperature
- The patient's pain level
- The fetal heart rate
- Maternal blood pressure
Correct answer: The fetal heart rate
The fetal heart rate is assessed immediately before and after amniotomy because rupture can precipitate umbilical cord prolapse, which produces sudden fetal bradycardia or variable decelerations. Color and amount of fluid are noted as well; maternal temperature, blood pressure, and pain are important but are not the immediate post-amniotomy priority.
- A patient at term presents with a transverse fetal lie confirmed by Leopold maneuvers and ultrasound, and she is in early labor. The nurse anticipates that the most likely plan of care will be:
- Oxytocin augmentation to correct the lie
- Allow spontaneous vaginal delivery
- Cesarean delivery
- Vacuum-assisted vaginal delivery
Correct answer: Cesarean delivery
A persistent transverse lie cannot deliver vaginally because no presenting part can engage the pelvis, so cesarean delivery is the anticipated plan once labor is established. Oxytocin and operative vaginal delivery do not correct a transverse lie and would be unsafe, risking cord prolapse and uterine rupture.
- During the active phase of labor, a fetal heart rate tracing shows abrupt decreases in the heart rate that vary in shape, depth, and timing relative to contractions, dropping from a baseline of 145 to 100 beats per minute and recovering quickly. These are best described as:
- Prolonged decelerations
- Early decelerations
- Late decelerations
- Variable decelerations
Correct answer: Variable decelerations
Variable decelerations are abrupt decreases in the fetal heart rate (onset to nadir in less than 30 seconds) that vary in shape, depth, and timing relative to contractions, most often caused by umbilical cord compression. Early decelerations mirror the contraction and reflect head compression, late decelerations are gradual and follow the contraction peak, and prolonged decelerations last 2 minutes or longer.
- A patient with a fetus in a persistent occiput posterior position during the second stage is experiencing protracted descent. Which maternal position change is most likely to facilitate fetal rotation to occiput anterior?
- Flat lithotomy with breath holding
- High Fowler with legs crossed
- Hands-and-knees (all-fours) position
- Supine with legs in stirrups
Correct answer: Hands-and-knees (all-fours) position
The hands-and-knees (all-fours) position uses gravity and pelvic mobility to encourage an occiput posterior fetus to rotate toward occiput anterior, often easing protracted descent and relieving back pain. A supine or lithotomy position reduces pelvic dimensions and does not promote rotation, and crossing the legs would impede descent.
- During the second stage of labor, ACOG and AWHONN support delayed (passive) pushing and spontaneous pushing techniques. Compared with immediate, directed Valsalva pushing at full dilation, a recognized benefit of allowing the fetus to descend before active pushing is:
- Preventing all perineal lacerations
- Allowing the fetus to descend with contractions, which may reduce maternal fatigue and the duration of active pushing
- Eliminating the need for fetal monitoring
- Guaranteed shorter total second stage in all patients
Correct answer: Allowing the fetus to descend with contractions, which may reduce maternal fatigue and the duration of active pushing
Permitting passive fetal descent before active pushing lets contractions advance the fetus, which can reduce active pushing time and maternal fatigue without worsening outcomes. It does not guarantee a shorter overall second stage in every patient, does not eliminate the need for fetal monitoring, and cannot prevent all perineal trauma.
- A nurse is using Leopold maneuvers to assess fetal presentation before applying the external fetal monitor. During which maneuver does the nurse palpate the fundus to determine which fetal pole (head or breech) occupies the upper uterus?
- Fourth maneuver
- Second maneuver
- First maneuver
- Third maneuver
Correct answer: First maneuver
The first Leopold maneuver palpates the uterine fundus to identify whether the breech (soft, irregular, less ballottable) or the head (firm, round, ballottable) occupies the upper segment. The second maneuver locates the fetal back and small parts on the sides, the third (Pawlik grasp) assesses the presenting part above the symphysis, and the fourth assesses descent and cephalic attitude. Performing Leopold maneuvers helps the nurse confirm lie and presentation and place the transducer over the fetal back where heart tones are loudest.
- During the third stage of labor, the nurse observes a sudden gush of blood, lengthening of the umbilical cord at the introitus, and a globular, firm uterus that rises in the abdomen. These are signs of:
- Uterine atony
- Retained placental fragments
- Uterine inversion
- Placental separation
Correct answer: Placental separation
These findings are the classic signs of placental separation in the third stage of labor: a gush of blood, cord lengthening, and a firm globular uterus that rises as the placenta detaches into the lower segment. Uterine atony produces a boggy uterus, retained fragments cause continued bleeding after delivery, and uterine inversion presents with a mass at the introitus and profound shock. Recognizing separation tells the nurse the placenta is ready to be delivered with gentle controlled cord traction and fundal support.
- A multipara progresses from 5 cm to complete dilation and delivers within 2 hours of the onset of regular contractions. The nurse documents this rapid course as:
- Precipitous labor
- Prolonged latent phase
- Arrest of descent
- Protracted labor
Correct answer: Precipitous labor
Precipitous labor is defined as expulsion of the fetus within 3 hours of the onset of regular contractions, so a total labor of about 2 hours meets the definition. Protracted labor and arrest disorders describe abnormally slow or stalled progress, and prolonged latent phase is an excessively long early phase. Precipitous labor raises the risk of perineal lacerations, postpartum hemorrhage, and unattended or out-of-hospital birth, so the nurse prepares for an imminent delivery.
- A nurse documents a cervical examination as 3 cm, 50 percent, and minus 2. Which of the following correctly interprets the middle value?
- The station is halfway to the perineum
- The fetal head is 50 percent engaged
- The cervix is 50 percent effaced
- The cervix is 50 percent dilated
Correct answer: The cervix is 50 percent effaced
In the standard shorthand of dilation/effacement/station, the middle value (50 percent) describes effacement, meaning the cervix has thinned to half of its original length. The first number is dilation in centimeters, and the third (minus 2) is station relative to the ischial spines. Understanding cervical dilation stages and effacement lets the nurse track first-stage progress and recognize when the active phase and second stage are approaching.
- A laboring patient at 39 weeks has thick, particulate, meconium-stained amniotic fluid after rupture of membranes, and the fetal heart rate tracing is Category I. According to current neonatal resuscitation guidance, the most appropriate plan for the newborn at birth is to:
- Perform routine intrapartum suctioning of the oropharynx on the perineum
- Provide routine newborn care and resuscitate based on the infant's respiratory effort and tone
- Withhold drying and stimulation until tracheal suctioning is completed
- Plan immediate intubation and tracheal suctioning before stimulation
Correct answer: Provide routine newborn care and resuscitate based on the infant's respiratory effort and tone
Current Neonatal Resuscitation Program guidance directs that a meconium-stained newborn be managed according to the infant's vigor, providing routine care for a vigorous infant and beginning resuscitation steps (warm, dry, stimulate, then positive-pressure ventilation if needed) for a nonvigorous infant; routine intrapartum oropharyngeal suctioning and mandatory tracheal suctioning of all meconium-exposed babies are no longer recommended. With a Category I tracing the fetus is well oxygenated, so the plan is standard care guided by the infant's effort and tone.
- A patient is receiving an oxytocin infusion for induction. The fetal heart rate is Category I, but the nurse notes six contractions in a 10-minute window averaged over 30 minutes, with normal fetal status. The most appropriate nursing action is to:
- Maintain the current oxytocin rate and document
- Increase the oxytocin to establish a regular pattern
- Decrease the oxytocin rate and continue close monitoring
- Stop the oxytocin immediately and give terbutaline
Correct answer: Decrease the oxytocin rate and continue close monitoring
With tachysystole (more than five contractions in 10 minutes averaged over 30 minutes) but a reassuring Category I tracing, the appropriate step is to decrease or titrate down the oxytocin and continue monitoring rather than abruptly stopping it or giving a tocolytic. Terbutaline and oxytocin discontinuation are reserved for tachysystole accompanied by a Category II or III tracing. Titrating the dose addresses excessive uterine activity while preserving the induction.
- Before initiating an oxytocin induction in a patient with an unfavorable cervix (Bishop score of 3), the provider orders cervical ripening. Which agent is a prostaglandin E1 analogue used off-label for cervical ripening?
- Terbutaline
- Misoprostol
- Magnesium sulfate
- Dinoprostone
Correct answer: Misoprostol
Misoprostol is a synthetic prostaglandin E1 analogue used (off-label) for cervical ripening and induction, typically in 25 to 50 microgram doses. Dinoprostone is the prostaglandin E2 agent, while magnesium sulfate and terbutaline are used to relax the uterus, not ripen the cervix. Cervical ripening agents are indicated when the Bishop score is unfavorable to improve the likelihood of successful vaginal delivery.
- A patient with an unfavorable cervix is undergoing mechanical cervical ripening with a transcervical Foley balloon catheter. The nurse explains that this method ripens the cervix primarily by:
- Reducing endogenous progesterone
- Releasing prostaglandins systemically
- Stimulating oxytocin receptor formation
- Applying direct mechanical pressure on the internal cervical os
Correct answer: Applying direct mechanical pressure on the internal cervical os
A transcervical balloon catheter ripens the cervix mechanically by exerting direct pressure on the internal os, which also stimulates local prostaglandin release as the cervix stretches. It does not deliver systemic prostaglandins or directly alter progesterone levels. Mechanical ripening is a useful alternative to pharmacologic agents, particularly when prostaglandins are contraindicated such as a prior uterine scar.
- A patient receiving an oxytocin infusion suddenly develops a single prolonged deceleration with the fetal heart rate falling to 80 bpm and persisting for 4 minutes, accompanied by tachysystole. After stopping the oxytocin and repositioning fail to resolve it, the nurse anticipates administration of:
- Carboprost
- Magnesium sulfate
- A second IV oxytocin bolus
- Terbutaline
Correct answer: Terbutaline
Terbutaline, a beta-adrenergic tocolytic, is the medication anticipated for acute intrauterine resuscitation when tachysystole with a prolonged deceleration persists despite stopping oxytocin and repositioning. Magnesium sulfate is for seizure prophylaxis and neuroprotection, and carboprost is a uterotonic that would worsen contractions. Terbutaline relaxes the uterus to restore uteroplacental perfusion while preparations for possible operative delivery proceed.
- During delivery of the head, the fetal head retracts tightly against the perineum (turtle sign) and the anterior shoulder does not deliver with the next contraction. The nurse recognizes shoulder dystocia and, after calling for help, should first assist with:
- Vigorous downward traction on the head
- The Zavanelli maneuver
- Applying firm fundal pressure
- The McRoberts maneuver
Correct answer: The McRoberts maneuver
The McRoberts maneuver, sharp hyperflexion of the maternal thighs onto the abdomen, is the recommended first-line response to shoulder dystocia because it flattens the sacrum and rotates the symphysis to free the impacted anterior shoulder. Fundal pressure is contraindicated because it worsens impaction, the Zavanelli maneuver (cephalic replacement) is a last resort, and excessive head traction risks brachial plexus injury. The turtle sign is the hallmark warning of shoulder dystocia.
- After the McRoberts maneuver alone does not relieve a shoulder dystocia, which additional maneuver should the nurse apply at the request of the provider?
- Suprapubic pressure directed downward and laterally behind the anterior shoulder
- Cricoid pressure
- Continuous strong traction on the fetal head
- Fundal pressure directed downward
Correct answer: Suprapubic pressure directed downward and laterally behind the anterior shoulder
Suprapubic pressure is applied just above the symphysis pubis, directed downward and obliquely behind the fetal anterior shoulder, to adduct and dislodge it from behind the pubic bone; it is combined with McRoberts and resolves the majority of dystocias. Fundal pressure is contraindicated because it further impacts the shoulder, and cricoid pressure is unrelated to obstetric care. Correct hand placement (suprapubic, not fundal) is the key safety point.
- The provider performing the McRoberts maneuver for shoulder dystocia explains that this position relieves the impaction primarily by:
- Increasing the pelvic inlet diameter through external rotation
- Delivering the posterior arm first
- Fracturing the fetal clavicle
- Flattening the lumbar lordosis and rotating the symphysis cephalad
Correct answer: Flattening the lumbar lordosis and rotating the symphysis cephalad
The McRoberts maneuver works by hyperflexing the maternal hips, which flattens the sacral promontory and lumbar lordosis and rotates the symphysis pubis cephalad, freeing the impacted anterior shoulder without changing the actual bony pelvic dimensions. Delivery of the posterior arm and deliberate clavicle fracture are separate maneuvers used if first-line measures fail. Understanding the mechanism reinforces why this gentle position is the safe initial step.
- While documenting a shoulder dystocia, the nurse lists internal rotational maneuvers performed. Which of the following is an internal maneuver rather than an external one?
- Rubin II (rotating the anterior shoulder toward the fetal chest)
- Maternal repositioning to hands and knees
- McRoberts maneuver
- Suprapubic pressure
Correct answer: Rubin II (rotating the anterior shoulder toward the fetal chest)
The Rubin II maneuver is an internal rotational maneuver in which the provider places a hand vaginally behind the anterior shoulder and rotates it toward the fetal chest to reduce the bisacromial diameter. McRoberts and suprapubic pressure are external maneuvers, and the Gaskin all-fours position is a repositioning maneuver. Accurate documentation of which maneuvers were internal versus external is an important legal and clinical record in dystocia events.
- A patient at 41 weeks experiences artificial rupture of membranes, and immediately the fetal heart rate drops to 70 bpm. On vaginal examination the nurse palpates a pulsating, cord-like structure in the vagina. The priority intervention is to:
- Administer oxytocin to expedite vaginal delivery
- Apply fundal pressure to deliver quickly
- Elevate the presenting part off the cord and place the patient in knee-chest position
- Replace the cord into the uterus and continue monitoring
Correct answer: Elevate the presenting part off the cord and place the patient in knee-chest position
For overt umbilical cord prolapse the priority is to relieve cord compression by manually elevating the presenting part off the cord with a gloved hand and placing the patient in knee-chest or steep Trendelenburg while preparing for emergency cesarean. The cord should never be pushed back, oxytocin would worsen compression, and fundal pressure is contraindicated. Keeping pressure off the cord preserves fetal oxygenation until delivery.
- A patient with a previous low transverse cesarean is in active labor attempting a trial of labor after cesarean. She suddenly reports sharp, tearing abdominal pain, the fetal heart rate shows a prolonged deceleration, contractions cease, and the presenting part is no longer palpable at the previously assessed station. The nurse suspects:
- Precipitous labor
- Placental abruption
- Uterine rupture
- Amniotic fluid embolism
Correct answer: Uterine rupture
Loss of fetal station (the presenting part recedes), sudden abdominal pain, abrupt cessation of contractions, and a Category III tracing with prolonged deceleration are classic signs of uterine rupture, an obstetric emergency in a TOLAC patient that requires immediate cesarean. Abruption typically presents with a tense, tender uterus and bleeding without loss of station, and amniotic fluid embolism presents with cardiopulmonary collapse and coagulopathy. The most reliable and often earliest sign is the abnormal fetal heart rate pattern.
- When counseling a patient about candidacy for a trial of labor after cesarean (TOLAC), which prior surgical history is the strongest contraindication?
- One prior low transverse cesarean
- A prior classical (high vertical) uterine incision
- A low transverse cesarean more than 18 months ago
- A prior cesarean for breech presentation
Correct answer: A prior classical (high vertical) uterine incision
A prior classical (high vertical) uterine incision is a contraindication to TOLAC because the upper uterine segment scar carries a substantially higher risk of uterine rupture during labor; cesarean delivery is recommended instead. A single prior low transverse incision is the most favorable scenario for a VBAC attempt, and a remote low transverse cesarean or one performed for breech does not preclude TOLAC. Verifying the type of prior incision is essential before offering a trial of labor.
- A patient requesting a vaginal birth after cesarean asks what factors make her a good candidate. Which combination is most consistent with appropriate VBAC candidacy per current guidance?
- Prior myomectomy entering the uterine cavity with active labor at home
- One prior low transverse incision, no other uterine scars, and no contraindication to vaginal birth
- A prior uterine rupture and a vertically scarred uterus
- Two prior classical incisions and a current placenta previa
Correct answer: One prior low transverse incision, no other uterine scars, and no contraindication to vaginal birth
Appropriate VBAC candidacy centers on one (or sometimes two) prior low transverse cesarean incisions, no other uterine scars or prior rupture, and no other contraindication to vaginal birth, with delivery in a facility able to perform emergency cesarean. A prior classical incision, prior rupture, and placenta previa are contraindications. Confirming a favorable scar history and a setting with emergency capability is central to safe VBAC planning.
- A laboring patient who is group B Streptococcus positive on her 36-week screen has just been admitted in active labor. Which intrapartum antibiotic is the first-line agent for GBS prophylaxis in a patient without a penicillin allergy?
- Vancomycin
- Cefazolin
- Penicillin G
- Clindamycin
Correct answer: Penicillin G
Penicillin G is the first-line intrapartum prophylaxis for a GBS-positive patient without penicillin allergy, typically given as 5 million units IV initially followed by 2.5 to 3 million units every 4 hours until delivery. Cefazolin is used for low-risk penicillin allergy, while clindamycin (if susceptibility confirmed) or vancomycin are reserved for high-risk allergy. Prophylaxis targets prevention of early-onset neonatal GBS disease.
- A GBS-positive patient in labor receives her first dose of intravenous penicillin. To achieve adequate prevention of early-onset neonatal GBS disease, the goal is to administer the first dose at least how long before delivery?
- At least 1 hour before birth
- At least 2 hours before birth
- At least 4 hours before birth
- At least 8 hours before birth
Correct answer: At least 4 hours before birth
Intrapartum GBS prophylaxis is considered adequate when the first dose is given at least 4 hours before delivery, which optimizes reduction of early-onset neonatal disease; shorter exposures provide some benefit but are classified as inadequate. This timing drives the recommendation to begin antibiotics promptly on admission for GBS-positive patients in labor. Documentation of the timing also informs newborn evaluation decisions.
- A patient in active labor requests epidural analgesia. Approximately 15 minutes after the epidural is dosed, her blood pressure drops to 84/50 mmHg and the fetal heart rate shows a deceleration. The nurse's priority interventions include repositioning, increasing IV fluids, and:
- Administering naloxone
- Administering ephedrine or phenylephrine per protocol
- Placing the patient in reverse Trendelenburg
- Discontinuing all IV fluids
Correct answer: Administering ephedrine or phenylephrine per protocol
Maternal hypotension is the most common side effect of epidural analgesia from sympathetic blockade, and management includes left lateral positioning, an IV fluid bolus, and a vasopressor such as ephedrine or phenylephrine per protocol when fluids are insufficient. Stopping fluids would worsen hypotension, reverse Trendelenburg reduces venous return, and naloxone reverses opioids, not sympathetic blockade. Prompt correction restores uteroplacental perfusion and resolves the fetal deceleration.
- A patient with a labor epidural is unable to feel the urge to void and her bladder is palpable above the symphysis. The most appropriate nursing intervention is to:
- Discontinue the epidural immediately
- Encourage Valsalva pushing to empty the bladder
- Catheterize the bladder as needed per protocol
- Restrict her oral and IV fluid intake
Correct answer: Catheterize the bladder as needed per protocol
Urinary retention is a recognized epidural side effect because the block reduces the sensation of bladder fullness; intermittent or indwelling catheterization per protocol relieves the distended bladder, which can otherwise impede fetal descent and cause trauma. Fluid restriction and Valsalva are inappropriate, and the epidural should not be stopped solely for retention. Routine bladder assessment is an essential nursing responsibility for the patient with regional anesthesia.
- A patient develops the sudden triad of severe hypoxia, profound hypotension, and cardiovascular collapse during the second stage of labor, rapidly followed by uncontrolled bleeding from the IV sites and uterus. The most likely diagnosis is:
- Eclampsia
- Septic shock
- Amniotic fluid embolism
- Hypovolemic shock from occult hemorrhage
Correct answer: Amniotic fluid embolism
Amniotic fluid embolism classically presents as the abrupt onset of hypoxia, hypotension or cardiovascular collapse, and coagulopathy (disseminated intravascular coagulation) during labor, delivery, or the immediate postpartum period, in the absence of another explanation. Septic shock evolves more gradually with fever, eclampsia presents with seizures, and isolated hypovolemia would not produce early hypoxia and DIC. Management is immediate high-quality resuscitation, oxygenation, and aggressive correction of coagulopathy.
- The nurse understands that the diagnosis of amniotic fluid embolism is established primarily by:
- Clinical presentation and exclusion of other causes
- Detection of fetal squamous cells in maternal blood
- A positive serum marker assay specific for amniotic fluid
- Chest CT angiography confirming an embolus
Correct answer: Clinical presentation and exclusion of other causes
Amniotic fluid embolism is a clinical diagnosis based on the characteristic abrupt collapse with hypoxia and coagulopathy during the peripartum period after other causes are excluded; there is no confirmatory laboratory test. Fetal squamous cells in maternal blood are neither sensitive nor specific, and CT angiography is used to evaluate thromboembolism, not AFE. Because no test confirms it, rapid clinical recognition and immediate resuscitation are critical.
- A nurse is interpreting an electronic fetal monitoring strip during active labor. The tracing shows a baseline of 140 bpm, moderate variability, accelerations present, and no decelerations. This tracing is categorized as:
- Category I
- Category III
- Category II
- Sinusoidal
Correct answer: Category I
A Category I (normal) tracing requires a baseline rate of 110 to 160 bpm, moderate variability, no late or variable decelerations, and accelerations may be present or absent; early decelerations may be present. The described strip meets all criteria, indicating normal fetal acid-base status. Category II is indeterminate and Category III is abnormal with absent variability plus recurrent late or variable decelerations, bradycardia, or a sinusoidal pattern.
- During the second stage of labor a fetal monitoring strip shows recurrent decelerations that begin after the onset of each contraction, reach their lowest point after the peak of the contraction, and return to baseline after the contraction ends. The nurse identifies these as:
- Late decelerations
- Prolonged decelerations
- Variable decelerations
- Early decelerations
Correct answer: Late decelerations
Late decelerations are gradual, symmetric decreases in the fetal heart rate that are delayed relative to the contraction, with the nadir occurring after the contraction peak and recovery after the contraction ends, reflecting uteroplacental insufficiency. Early decelerations mirror the contraction and are caused by head compression, and variable decelerations are abrupt and variable in timing from cord compression. Recurrent late decelerations prompt intrauterine resuscitation measures.
- A fetal monitoring strip during labor shows a smooth, undulating, sine-wave-like baseline with a frequency of about 3 to 5 cycles per minute, fixed amplitude, and absent variability. This pattern requires urgent evaluation because it is most associated with:
- Severe fetal anemia or hypoxia
- Maternal anxiety
- Maternal fever
- Normal fetal sleep
Correct answer: Severe fetal anemia or hypoxia
A true sinusoidal pattern, a smooth sine-wave baseline of 3 to 5 cycles per minute with absent variability, is an ominous finding associated with severe fetal anemia (such as from fetomaternal hemorrhage or Rh alloimmunization) or significant hypoxia and is classified as Category III. It is distinct from benign fetal sleep, which shows reduced but present variability and resolves. Recognition prompts urgent workup and likely expedited delivery.
- A laboring patient on continuous EFM shows recurrent variable decelerations that are abrupt in onset, vary in shape and timing relative to contractions, and drop more than 15 bpm below baseline. The pathophysiologic cause the nurse should suspect is:
- Uteroplacental insufficiency
- Umbilical cord compression
- Maternal hypoglycemia
- Fetal head compression
Correct answer: Umbilical cord compression
Variable decelerations are abrupt decreases in fetal heart rate that vary in onset, depth, and duration relative to contractions and are caused by umbilical cord compression, often from oligohydramnios, nuchal cord, or cord around the body. Late decelerations indicate uteroplacental insufficiency, and early decelerations indicate head compression. Initial management includes maternal repositioning to relieve compression and, if persistent, considering amnioinfusion.
- Recurrent variable decelerations from cord compression persist despite maternal repositioning during the first stage of labor, with ruptured membranes and a Category II tracing. The intervention specifically aimed at relieving cord compression by restoring fluid volume is:
- Amnioinfusion
- Maternal oxygen by nonrebreather
- An IV fluid bolus
- Increasing the oxytocin rate
Correct answer: Amnioinfusion
Amnioinfusion, the instillation of warmed normal saline through an intrauterine catheter, can relieve recurrent variable decelerations by cushioning the umbilical cord when oligohydramnios or membrane rupture has reduced amniotic fluid. Maternal oxygen and IV boluses support oxygenation and perfusion but do not directly relieve mechanical cord compression, and increasing oxytocin would worsen the situation. Amnioinfusion is used when repositioning alone fails to resolve cord-related variables.
- A nurse evaluates the strength of a patient's labor contractions using an intrauterine pressure catheter and calculates Montevideo units. Adequate uterine activity for labor progress is generally considered to be:
- Greater than 400 Montevideo units
- 50 to 100 Montevideo units
- Greater than or equal to 200 Montevideo units
- Less than 150 Montevideo units
Correct answer: Greater than or equal to 200 Montevideo units
Adequate uterine activity is typically defined as 200 or more Montevideo units in a 10-minute window, measured with an intrauterine pressure catheter by summing the peak-minus-baseline pressures of each contraction. Values below this threshold suggest hypotonic labor that may benefit from augmentation, while documenting adequate activity is required before diagnosing arrest of dilation. This objective measure distinguishes inadequate from adequate contractions.
- A patient at term with a fetal heart rate baseline of 165 bpm has been laboring for several hours and now has a temperature of 38.6 C, uterine tenderness, and purulent amniotic fluid. The nurse recognizes these findings as most consistent with:
- Amniotic fluid embolism
- Intraamniotic infection (chorioamnionitis)
- Normal labor progress
- Placental abruption
Correct answer: Intraamniotic infection (chorioamnionitis)
Maternal fever, fetal tachycardia, uterine tenderness, and purulent or foul amniotic fluid are characteristic of intraamniotic infection (chorioamnionitis), which warrants prompt antibiotics, antipyretics, and consideration of expediting delivery. Abruption presents with bleeding and a rigid painful uterus, and amniotic fluid embolism presents with sudden cardiopulmonary collapse. Fetal tachycardia is an early and common sign of intraamniotic infection during labor.
- During the second stage of labor, the nurse anticipates that effective maternal pushing combined with descent will lead to the cardinal movements of labor. Which cardinal movement immediately follows internal rotation of the fetal head?
- Engagement
- Flexion
- Extension
- Restitution
Correct answer: Extension
The cardinal movements proceed as engagement, descent, flexion, internal rotation, extension, restitution (external rotation), and expulsion; extension occurs as the flexed, internally rotated head passes under the symphysis and the occiput emerges, with the head extending to deliver. Engagement and flexion precede internal rotation, and restitution follows extension. Knowing this sequence helps the nurse anticipate progress and support the birth.
- A patient is fully dilated but has been pushing for over 3 hours with an epidural and the fetal head remains at plus 2 station with a persistent occiput posterior position. The provider plans an operative vaginal delivery. A prerequisite the nurse must confirm before forceps or vacuum is:
- The fetal head is engaged and the cervix is completely dilated
- The cervix is at least 8 cm dilated
- The fetus is in breech presentation
- The membranes are intact
Correct answer: The fetal head is engaged and the cervix is completely dilated
Operative vaginal delivery (forceps or vacuum) requires that the cervix be completely dilated, the membranes ruptured, the fetal head engaged with a known position, and the bladder empty, with adequate analgesia and an experienced operator. An 8 cm cervix or intact membranes would be contraindications, and breech presentation is not amenable to vacuum extraction. Verifying these criteria is a key safety responsibility during assisted vaginal birth.
- A patient at 38 weeks presents in labor with the fetus in a frank breech presentation and is planned for cesarean birth. The nurse explains that the main reason cesarean is generally preferred for term breech is:
- Lower risk of head entrapment and birth trauma to the fetus
- Decreased need for fetal monitoring
- Reduced maternal blood loss
- Faster maternal recovery than vaginal birth
Correct answer: Lower risk of head entrapment and birth trauma to the fetus
Planned cesarean is generally preferred for the term singleton breech because vaginal breech birth carries a higher risk of fetal head entrapment, cord prolapse, and associated birth trauma. Cesarean does not reduce maternal blood loss or speed maternal recovery compared with vaginal birth, and fetal monitoring is still required. The primary rationale is reducing neonatal morbidity associated with the aftercoming head.
- A patient with a known nonreassuring Category III tracing (absent variability with recurrent late decelerations) is being prepared for emergent cesarean. While the team mobilizes, the nurse implements intrauterine resuscitation. Which set of interventions is most appropriate?
- Place supine, start oxytocin, withhold oxygen
- Increase oxytocin, apply fundal pressure, restrict fluids
- Administer terbutaline only after delivery
- Reposition to lateral, stop oxytocin, give IV fluid bolus and maternal oxygen
Correct answer: Reposition to lateral, stop oxytocin, give IV fluid bolus and maternal oxygen
For a Category III tracing, intrauterine resuscitation includes lateral repositioning to relieve aortocaval compression, discontinuing oxytocin to reduce uterine activity, an IV fluid bolus to improve perfusion, and maternal oxygen, while preparing for expedited delivery. A supine position and continued or increased oxytocin worsen fetal status, and fundal pressure is never indicated. These measures aim to improve fetal oxygenation while delivery is arranged.
- A nurse caring for a laboring patient with an epidural notes the patient suddenly becomes anxious with circumoral numbness, ringing in the ears, and a metallic taste shortly after an epidural top-up dose. The nurse should suspect:
- Postdural puncture headache
- Eclampsia
- Local anesthetic systemic toxicity
- Amniotic fluid embolism
Correct answer: Local anesthetic systemic toxicity
Circumoral numbness, tinnitus, a metallic taste, and agitation after a local anesthetic dose are early signs of local anesthetic systemic toxicity, which can progress to seizures and cardiac arrest and requires stopping the injection and initiating lipid emulsion therapy. Amniotic fluid embolism and eclampsia present differently, and a postdural puncture headache is positional and develops later. Early recognition of these neurologic warning signs prevents progression to collapse.
- A patient is being induced and the nurse prepares an oxytocin infusion. Which baseline assessment is most essential before initiating the infusion?
- Patient's last oral intake
- Maternal blood type
- Maternal hemoglobin level
- Fetal heart rate tracing and uterine activity baseline
Correct answer: Fetal heart rate tracing and uterine activity baseline
Before starting oxytocin, the nurse must establish a baseline fetal heart rate tracing and assess uterine activity to ensure fetal well-being and a normal contraction pattern, because oxytocin can cause tachysystole and fetal compromise. While other data are useful, the reassuring fetal status and baseline uterine activity directly determine whether it is safe to begin and how to titrate. Continuous monitoring then guides ongoing dose adjustments.
- A patient receiving oxytocin develops tachysystole with recurrent late decelerations and minimal variability. After stopping the oxytocin, repositioning, giving oxygen, and an IV bolus, the contractions remain excessive. The nurse anticipates the provider will order:
- Terbutaline subcutaneously or IV
- Methylergonovine
- A repeat oxytocin bolus
- Carboprost intramuscularly
Correct answer: Terbutaline subcutaneously or IV
When tachysystole with a Category II or III tracing persists after stopping oxytocin and conservative measures, terbutaline is the uterine relaxant used to abolish excessive contractions and restore fetal oxygenation. Carboprost and methylergonovine are uterotonics that would intensify contractions, and a repeat oxytocin bolus would worsen the situation. Terbutaline buys time while delivery is arranged if needed.
- A laboring patient at 5 cm is positioned supine and develops maternal hypotension with recurrent fetal decelerations. The most likely cause and immediate corrective action are:
- Uterine atony; massage the fundus
- Aortocaval compression; reposition to the left lateral side
- Maternal hemorrhage; transfuse packed cells
- Epidural failure; redose the catheter
Correct answer: Aortocaval compression; reposition to the left lateral side
In the supine position the gravid uterus compresses the inferior vena cava and aorta (aortocaval or supine hypotensive syndrome), reducing venous return, maternal cardiac output, and uteroplacental perfusion, which produces hypotension and fetal decelerations; turning the patient to the left lateral position promptly relieves the compression. The scenario is not uterine atony or hemorrhage. Positioning is a simple, first-line intrauterine resuscitation measure.
- During the second stage, a patient with a prolonged second stage and a fetus in the occiput posterior position would most benefit from which intervention to encourage rotation to occiput anterior?
- Continuous supine positioning
- Increasing the epidural infusion rate
- Maternal position changes such as hands-and-knees
- Immediate vacuum extraction
Correct answer: Maternal position changes such as hands-and-knees
Maternal position changes, particularly the hands-and-knees position, can facilitate rotation of an occiput posterior fetus to occiput anterior and relieve back pain, improving the likelihood of spontaneous vaginal birth. Continuous supine positioning and increasing the epidural can impair maternal pushing and rotation, and operative delivery is reserved for when conservative measures fail. Position changes are a low-risk nursing strategy for malposition in the second stage.
- A nurse caring for a patient in the latent phase of the first stage of labor would expect the cervix to dilate from:
- 6 to 8 cm
- 0 to about 6 cm
- 10 cm to crowning
- 8 to 10 cm
Correct answer: 0 to about 6 cm
The latent phase of the first stage of labor spans the onset of labor to approximately 6 cm of dilation under current definitions, during which dilation is slower and contractions become regular. The active phase then proceeds more rapidly to complete dilation at 10 cm, and the second stage extends from complete dilation to birth. Recognizing that the active phase begins around 6 cm helps avoid premature diagnosis of arrest in the latent phase.
- A patient is at complete dilation but has no urge to push and the fetal head is at 0 station with reassuring fetal status. With an epidural in place, an appropriate evidence-based nursing approach is to:
- Insist on immediate forceful pushing
- Allow delayed (passive) descent before active pushing
- Position the patient supine and flat
- Apply fundal pressure to assist descent
Correct answer: Allow delayed (passive) descent before active pushing
For a patient with an epidural, complete dilation, a high station, and reassuring fetal status, allowing a period of passive descent (laboring down) before active pushing is an accepted approach that lets the head descend with uterine forces and can reduce maternal fatigue. Forceful immediate pushing at a high station, fundal pressure, and supine flat positioning are not appropriate. This individualized approach reflects current second-stage management.
- A patient with a precipitous labor is about to deliver before the provider arrives. To reduce the risk of perineal laceration and a too-rapid head delivery, the nurse should:
- Place the patient flat and cross her legs
- Hold the fetal head back forcefully against the contractions
- Instruct the patient to push as hard as possible continuously
- Apply gentle counterpressure to the perineum and control the delivery of the head between contractions
Correct answer: Apply gentle counterpressure to the perineum and control the delivery of the head between contractions
During a precipitous birth the nurse supports a controlled delivery by applying gentle counterpressure to the fetal head and perineum and encouraging the patient to pant or push gently between contractions, which reduces the rapid expulsion that causes perineal trauma and intracranial pressure changes. Forcibly holding the head back, continuous hard pushing, and crossing the legs are unsafe. Controlled delivery protects both mother and newborn during rapid labor.
- A nurse reviews a Category II fetal heart rate tracing showing minimal variability and intermittent late decelerations during labor. To assess fetal acid-base status at the bedside, the nurse anticipates the provider may use:
- Immediate forceps delivery
- An oxytocin challenge test
- Administration of maternal sedation
- Fetal scalp stimulation to elicit an acceleration
Correct answer: Fetal scalp stimulation to elicit an acceleration
For an indeterminate Category II tracing, fetal scalp (digital) stimulation is a quick bedside method to assess fetal well-being: an acceleration of at least 15 bpm for 15 seconds in response suggests a normal pH and reassuring acid-base status. Immediate operative delivery is not warranted solely on a Category II tracing without further evaluation, and maternal sedation does not assess the fetus. A positive response can avoid unnecessary intervention.
- A patient at 40 weeks is admitted with spontaneous rupture of membranes and clear fluid but irregular, mild contractions and a closed cervix. Several hours later she is still 1 cm with poorly progressive contractions. The nurse recognizes this as which labor disorder?
- Arrest of descent
- Precipitous labor
- Prolonged latent phase
- Active-phase arrest
Correct answer: Prolonged latent phase
A prolonged latent phase is an excessively long early phase before active labor is established, characterized by slow or no cervical change despite contractions and a cervix that has not reached the active threshold. Active-phase arrest and arrest of descent occur after active labor or full dilation, and precipitous labor is abnormally rapid. Distinguishing a prolonged latent phase prevents premature cesarean and guides supportive measures or augmentation.
- A nurse is performing Leopold maneuvers on a term patient in early labor. During the first maneuver, the nurse palpates a firm, round, ballotable mass in the uterine fundus. This finding most likely indicates that the:
- Fetal back is positioned anteriorly
- Fetus is in a transverse lie
- Anterior shoulder is engaged in the pelvis
- Fetus is in a breech presentation
Correct answer: Fetus is in a breech presentation
A firm, round, ballotable mass in the fundus during the first Leopold maneuver indicates a breech presentation, because that fundal mass is the fetal head while the softer, less defined breech occupies the lower pole. In a cephalic (vertex) presentation the head is the hard ballotable part found at the pelvic inlet during the third maneuver, not the fundus. Leopold maneuvers are a four-step systematic abdominal palpation used to determine fetal lie, presentation, position, and engagement before labor management decisions.
- A laboring patient is dilated 6 cm with contractions every 3 minutes lasting 60 seconds. Using current AWHONN/ACOG labor terminology, this patient is in which phase or stage of labor?
- Latent phase of the first stage
- Third stage of labor
- Active phase of the first stage
- Second stage of labor
Correct answer: Active phase of the first stage
At 6 cm of dilation with regular contractions, the patient is in the active phase of the first stage of labor. Contemporary ACOG terminology places the onset of active labor at approximately 6 cm rather than the older 4 cm cutoff, with the latent phase preceding active labor and the second stage beginning only at complete (10 cm) dilation. The third stage spans delivery of the fetus to delivery of the placenta. The first stage ends at full cervical dilation.
- A multiparous patient progresses from 4 cm to complete dilation and delivers within 2 hours of the onset of regular contractions. The nurse documents this as precipitous labor. By definition, precipitous labor is total labor lasting less than:
- 1 hour
- 5 hours
- 3 hours
- 6 hours
Correct answer: 3 hours
Precipitous labor is defined as expulsion of the fetus within less than 3 hours from the onset of regular contractions. It carries increased risk of maternal lacerations, postpartum hemorrhage from uterine atony, and neonatal complications because the rapid descent allows little time for tissue accommodation or preparation. It is more common in multiparas and with induction or a history of prior rapid births.
- During a vertex delivery the fetal head delivers but then retracts tightly against the perineum and external rotation fails to occur (the turtle sign). The nurse should immediately:
- Encourage the patient to bear down forcefully
- Call for help and assist with the McRoberts maneuver
- Apply downward traction on the fetal head
- Apply firm fundal pressure to expel the shoulders
Correct answer: Call for help and assist with the McRoberts maneuver
The correct response is to call for additional help and assist with the McRoberts maneuver, which is the first-line intervention for shoulder dystocia signaled by the turtle sign. McRoberts involves sharply hyperflexing the patient's thighs onto the abdomen, which flattens the sacrum and rotates the pubic symphysis to free the impacted anterior shoulder. Fundal pressure is contraindicated because it worsens impaction, and excessive traction on the head increases the risk of brachial plexus injury.
- When suprapubic pressure is applied to relieve a shoulder dystocia, the pressure is correctly directed:
- Downward and laterally just above the pubic symphysis toward the fetal chest
- Directly on the maternal sacrum from behind
- Straight downward over the uterine fundus
- Upward against the maternal abdomen to elevate the fetus
Correct answer: Downward and laterally just above the pubic symphysis toward the fetal chest
Suprapubic pressure is applied just above the pubic symphysis in a downward and lateral direction toward the fetal sternum to adduct and rotate the impacted anterior shoulder into the larger oblique pelvic diameter. Pressure over the fundus (fundal pressure) is contraindicated because it drives the shoulder more firmly against the symphysis. Suprapubic pressure is typically applied together with the McRoberts maneuver as a first-line external maneuver.
- In managing shoulder dystocia, after McRoberts and suprapubic pressure fail, the provider rotates the posterior shoulder by pressing on its posterior aspect to rotate the fetus. This internal rotational technique is known as the:
- Woods corkscrew maneuver
- Brandt-Andrews maneuver
- Ritgen maneuver
- Zavanelli maneuver
Correct answer: Woods corkscrew maneuver
The Woods corkscrew (screw) maneuver is an internal rotational technique in which the provider applies pressure to rotate the fetus and dislodge the impacted shoulders, used after first-line external maneuvers fail. The Zavanelli maneuver is the last-resort cephalic replacement before cesarean, the Ritgen maneuver controls delivery of the fetal head, and the Brandt-Andrews maneuver assists placental delivery in the third stage.
- A patient undergoing oxytocin induction has the fetal monitor show six contractions in a 10-minute window averaged over 30 minutes, accompanied by recurrent late decelerations. The nurse recognizes tachysystole with a Category II tracing. The priority nursing action is to:
- Administer an additional bolus of intravenous oxytocin
- Increase the oxytocin infusion rate to shorten labor
- Discontinue the oxytocin and reposition the patient laterally
- Prepare for an immediate forceps-assisted delivery
Correct answer: Discontinue the oxytocin and reposition the patient laterally
The priority is to discontinue (or decrease) the oxytocin and reposition the patient to a lateral position to restore uteroplacental perfusion. Tachysystole is defined as more than five contractions in 10 minutes averaged over 30 minutes; when it is accompanied by fetal heart rate changes, reducing uterine activity is the immediate corrective step. Increasing oxytocin or administering another bolus would worsen the tachysystole and fetal compromise.
- A nurse is preparing a patient for induction. The cervix is 1 cm dilated, 30 percent effaced, firm, posterior, with the fetal head at -3 station, giving an unfavorable Bishop score. The most appropriate first step before starting an oxytocin infusion is to:
- Begin a high-rate oxytocin infusion immediately
- Defer the induction until the cervix dilates spontaneously
- Perform an amniotomy to accelerate labor
- Administer a cervical ripening agent such as dinoprostone or misoprostol
Correct answer: Administer a cervical ripening agent such as dinoprostone or misoprostol
With an unfavorable cervix (low Bishop score), a cervical ripening agent such as dinoprostone or misoprostol, or a mechanical method such as a transcervical Foley balloon, should be used before oxytocin to soften and dilate the cervix and improve the chance of successful vaginal birth. Starting oxytocin or performing amniotomy on an unripe cervix increases the risk of a failed induction and cesarean. A Bishop score of 6 or higher is generally considered favorable.
- A patient receives an epidural for labor analgesia. Within 10 minutes the nurse notes the maternal blood pressure has dropped from 124/76 to 86/50 and the fetal heart rate shows a prolonged deceleration. The nurse's priority intervention is to:
- Discontinue all intravenous fluids
- Administer a beta-blocker to stabilize the heart rate
- Place the patient supine and elevate the head of the bed
- Reposition the patient to a lateral position and give a rapid IV fluid bolus
Correct answer: Reposition the patient to a lateral position and give a rapid IV fluid bolus
Maternal hypotension is the most common side effect of epidural analgesia, caused by sympathetic blockade and vasodilation, and it can reduce uteroplacental perfusion and trigger fetal heart rate changes. The priority is to reposition the patient laterally to relieve aortocaval compression and give a rapid IV crystalloid bolus; supplemental oxygen and, if needed, ephedrine or phenylephrine follow. Placing the patient supine would worsen hypotension by compressing the vena cava.
- A patient who is GBS-positive on her 36-week screen presents in active labor. The provider orders intrapartum antibiotic prophylaxis. For a patient with no penicillin allergy, the recommended regimen in the United States is intravenous penicillin G:
- 5 million units initially, then 2.5 to 3 million units every 4 hours until birth
- A single 2 g intramuscular dose
- 250 mg orally every 6 hours until birth
- 1 million units once at admission only
Correct answer: 5 million units initially, then 2.5 to 3 million units every 4 hours until birth
For a GBS-positive patient without penicillin allergy, the recommended intrapartum prophylaxis is IV penicillin G 5 million units initially, then 2.5 to 3 million units every 4 hours until birth. Adequate prophylaxis ideally requires at least 4 hours before delivery to achieve protective fetal and amniotic fluid levels and prevent early-onset neonatal GBS disease. Oral or single intramuscular dosing does not achieve reliable intrapartum protection; cefazolin or vancomycin are alternatives based on the type of penicillin allergy.
- Meconium-stained amniotic fluid is noted when the membranes rupture during labor. The nurse understands that the most appropriate management of a vigorous newborn born through meconium-stained fluid is to:
- Perform immediate routine endotracheal suctioning before the first breath
- Withhold all stimulation until a chest radiograph is obtained
- Administer prophylactic surfactant at delivery
- Provide routine newborn care with warming, drying, and stimulation
Correct answer: Provide routine newborn care with warming, drying, and stimulation
A vigorous newborn born through meconium-stained amniotic fluid should receive routine care including warming, drying, and stimulation, with suctioning only if the airway is obstructed. Current Neonatal Resuscitation Program guidance no longer recommends routine intrapartum or immediate endotracheal suctioning of vigorous infants. Meconium-stained fluid does, however, warrant readiness for resuscitation because of the risk of meconium aspiration syndrome if the infant is non-vigorous.
- During the second stage of labor, the fetal heart rate baseline is 140 bpm with moderate variability and repetitive U-shaped decelerations that drop abruptly to 100 bpm at the onset of each contraction and return abruptly to baseline as the contraction ends. These decelerations are best described as:
- A sinusoidal pattern from fetal anemia
- Variable decelerations from umbilical cord compression
- Late decelerations from uteroplacental insufficiency
- Early decelerations from head compression
Correct answer: Variable decelerations from umbilical cord compression
Abrupt-onset, abrupt-return, U- or V-shaped decelerations that vary in timing relative to contractions are variable decelerations, classically caused by umbilical cord compression. The abrupt drop and return distinguish them from the gradual, mirror-image shape of early decelerations (head compression) and the delayed nadir of late decelerations (uteroplacental insufficiency). Because moderate variability is preserved, this is a Category II tracing; repositioning is the first intervention.
- A laboring patient with a prior low-transverse cesarean is being evaluated as a VBAC candidate. Which of the following findings would most strongly contraindicate a trial of labor after cesarean?
- Maternal age of 35 years
- A single prior low-transverse uterine incision
- A prior classical (high vertical) uterine incision
- An estimated fetal weight of 3,600 grams
Correct answer: A prior classical (high vertical) uterine incision
A prior classical (high vertical) uterine incision is a contraindication to a trial of labor after cesarean because it carries a substantially higher risk of catastrophic uterine rupture. The most favorable VBAC candidate has one prior low-transverse incision, no other uterine scars, and no contraindication to vaginal birth. Neither an average estimated fetal weight nor maternal age of 35 disqualifies a patient from a TOLAC.
- A patient suddenly develops profound hypotension, hypoxia, and seizure activity moments after artificial rupture of membranes, followed rapidly by signs of coagulopathy with oozing from her IV site. The nurse recognizes this classic triad as most consistent with:
- Placental abruption
- Amniotic fluid embolism
- Eclampsia
- Local anesthetic systemic toxicity
Correct answer: Amniotic fluid embolism
The abrupt triad of cardiorespiratory collapse (hypotension and hypoxia), neurologic compromise (seizure), and disseminated intravascular coagulation occurring around labor, delivery, or membrane rupture is the classic presentation of amniotic fluid embolism. It is a rare, unpredictable obstetric emergency requiring immediate high-quality resuscitation, blood and clotting-factor replacement, and often perimortem cesarean. Eclampsia and abruption do not typically produce this sudden cardiopulmonary collapse with rapid-onset coagulopathy.
- During labor a multiparous patient with prior cesarean reports sudden severe abdominal pain, the fetal presenting part is noted to recede on examination, and the fetal heart rate drops to a prolonged bradycardia. Which additional finding would most support a diagnosis of uterine rupture?
- Loss of fetal station with maternal hemodynamic instability
- Gradual increase in regular contraction intensity
- A reactive nonstress pattern
- Bright red painless vaginal bleeding
Correct answer: Loss of fetal station with maternal hemodynamic instability
Loss of fetal station (the presenting part receding from the pelvis) together with maternal signs of hemorrhage such as tachycardia and hypotension strongly supports uterine rupture. The most reliable sign of rupture is a sudden, prolonged fetal bradycardia or abrupt deterioration of the fetal heart rate, often with abdominal pain and cessation or change in contractions. Painless bright red bleeding suggests placenta previa rather than rupture.
- On vaginal examination during labor, the nurse palpates a pulsating, cord-like structure ahead of the fetal presenting part after the membranes rupture. While calling for emergency assistance, the most appropriate immediate intervention is to:
- Keep the gloved hand in the vagina and elevate the presenting part off the cord
- Remove the hand and have the patient ambulate
- Apply fundal pressure to advance delivery
- Attempt to replace the cord into the uterus
Correct answer: Keep the gloved hand in the vagina and elevate the presenting part off the cord
With an overt umbilical cord prolapse, the examiner should keep the gloved hand in the vagina and manually elevate the presenting part off the cord to relieve compression while preparing for emergency cesarean. Placing the patient in a knee-chest or steep Trendelenburg position further reduces pressure. The cord should not be pushed back in or handled excessively, and fundal pressure is contraindicated because it would compress the cord further.
- A nurse is teaching a student about the three phases of the first stage of labor. The latent phase is best characterized by:
- Delivery of the fetus through the pelvis
- Cervical dilation from approximately 6 cm to complete with rapid descent
- Separation and expulsion of the placenta
- Cervical dilation from 0 to about 5 cm with slower, more gradual progress
Correct answer: Cervical dilation from 0 to about 5 cm with slower, more gradual progress
The latent phase of the first stage covers early cervical dilation from 0 to roughly 5 cm and progresses more slowly and irregularly than the active phase. The active phase (about 6 cm to complete dilation) is marked by more rapid dilation, the second stage is delivery of the fetus, and the third stage is delivery of the placenta. Recognizing slower latent-phase progress prevents premature diagnosis of labor arrest.
- A nurse documents cervical examination findings during labor. The term station refers to:
- The diameter of the cervical opening in centimeters
- The percentage of cervical thinning
- The relationship of the fetal presenting part to the maternal ischial spines
- The firmness of the cervix on palpation
Correct answer: The relationship of the fetal presenting part to the maternal ischial spines
Station describes the relationship of the fetal presenting part to the maternal ischial spines, measured in centimeters from -5 (high) to +5 (on the perineum), with 0 station meaning the presenting part is at the level of the spines (engaged). Dilation is the diameter of the cervical opening, effacement is the percentage of thinning, and consistency describes firmness. These parameters together track labor progress and form part of the Bishop score.
- A patient with intact membranes is dilated 7 cm. The provider performs an amniotomy and immediately the fetal heart rate shows recurrent variable decelerations. After repositioning fails to fully resolve them, an order is given for amnioinfusion. The primary purpose of amnioinfusion in this situation is to:
- Relieve umbilical cord compression by restoring fluid volume
- Accelerate cervical dilation
- Increase the strength of uterine contractions
- Wash meconium from the fetal lungs
Correct answer: Relieve umbilical cord compression by restoring fluid volume
Amnioinfusion instills warmed normal saline into the uterine cavity to cushion the umbilical cord and relieve the cord compression that produces recurrent variable decelerations. It does not strengthen contractions, dilate the cervix, or remove meconium from the fetal lungs. By restoring an amniotic fluid buffer it can improve the fetal heart rate pattern and reduce the need for operative delivery.
- Using the current ACOG reVITALize definition, postpartum hemorrhage is best described as:
- Blood loss requiring a transfusion of two or more units of packed red cells
- Any blood loss greater than 500 mL after a vaginal birth
- A 10 percent drop in hematocrit from the antepartum value
- Cumulative blood loss of 1,000 mL or more, OR blood loss accompanied by signs or symptoms of hypovolemia, within 24 hours of birth regardless of route
Correct answer: Cumulative blood loss of 1,000 mL or more, OR blood loss accompanied by signs or symptoms of hypovolemia, within 24 hours of birth regardless of route
Postpartum hemorrhage is defined as cumulative blood loss of 1,000 mL or more, or any blood loss with signs or symptoms of hypovolemia, within 24 hours of birth regardless of delivery route. ACOG adopted this unified threshold so the same cutoff applies to vaginal and cesarean births. The old 500 mL vaginal figure is no longer the diagnostic threshold, and a hematocrit drop is too delayed to drive real-time intervention.
- A nurse is teaching a new graduate the leading cause of early postpartum hemorrhage. Which condition accounts for the majority of cases?
- Retained placental fragments
- Uterine atony
- Coagulopathy
- Lower genital tract laceration
Correct answer: Uterine atony
Uterine atony is the cause of roughly 70 to 80 percent of early postpartum hemorrhage cases, making it the single most common cause. The classic framework lists the causes as the four T's: Tone (atony), Trauma (lacerations), Tissue (retained products), and Thrombin (coagulopathy). While retained tissue, lacerations, and coagulopathy all cause bleeding, atony is by far the most frequent.
- A nurse assessing a woman two hours after vaginal birth palpates a uterus that is soft, difficult to locate, and above the umbilicus, with a steady trickle of bright red blood. What is the priority intervention?
- Perform firm fundal massage while supporting the lower uterine segment
- Apply an ice pack to the perineum
- Encourage the woman to empty her bladder
- Administer a stool softener
Correct answer: Perform firm fundal massage while supporting the lower uterine segment
Firm fundal massage while supporting the lower uterine segment is the priority because a boggy uterus signals atony, the leading cause of hemorrhage, and massage stimulates the uterus to contract and compress bleeding vessels. The nondominant hand braces just above the symphysis to prevent uterine inversion. Emptying the bladder is an appropriate next step if the bladder is distended, but immediate massage takes precedence when active bleeding is present.
- When performing fundal massage on a postpartum woman, the correct technique includes:
- Massaging vigorously with both hands deep into the abdomen until the woman reports pain
- Cupping one hand over the fundus and using the other to support and stabilize the uterus just above the symphysis pubis
- Applying continuous downward pressure on the fundus to express clots
- Massaging only the lower uterine segment to avoid disturbing the placental site
Correct answer: Cupping one hand over the fundus and using the other to support and stabilize the uterus just above the symphysis pubis
Correct fundal massage uses one hand cupped over the fundus to massage in a circular motion while the other hand supports and stabilizes the uterus just above the symphysis pubis. The supporting hand prevents downward displacement and uterine inversion. Continuous hard downward pressure on an uncontracted uterus risks inversion and is not the technique; massage should stop once the uterus firms.
- After massage and oxytocin fail to control bleeding from uterine atony, the provider orders methylergonovine. Before administering it, the nurse must verify the absence of:
- Renal calculi
- Hypertension
- Asthma
- Diabetes mellitus
Correct answer: Hypertension
Methylergonovine is contraindicated in hypertension because it causes generalized vasoconstriction and can precipitate a dangerous blood pressure spike or stroke. The nurse must confirm the woman is not hypertensive (including preeclampsia) before giving it. Carboprost (a prostaglandin) is the agent contraindicated in asthma, so the asthma check applies to a different uterotonic.
- A woman with persistent uterine atony and asthma needs a second-line uterotonic. Which agent should be avoided because of her respiratory history?
- Oxytocin
- Tranexamic acid
- Misoprostol
- Carboprost tromethamine
Correct answer: Carboprost tromethamine
Carboprost tromethamine (15-methyl prostaglandin F2-alpha) should be avoided in women with asthma because it can cause bronchospasm. For this patient, misoprostol or another agent would be safer. Oxytocin and tranexamic acid are not contraindicated by asthma; tranexamic acid is an antifibrinolytic adjunct rather than a uterotonic.
- The five components scored in the Apgar assessment are:
- Temperature, glucose, heart rate, respiratory rate, and color
- Respiratory effort, tone, color, weight, and gestational age
- Heart rate, respiratory effort, muscle tone, reflex irritability, and color
- Heart rate, blood pressure, tone, grimace, and capillary refill
Correct answer: Heart rate, respiratory effort, muscle tone, reflex irritability, and color
The Apgar score is the sum of five components: heart rate, respiratory effort, muscle tone, reflex irritability (grimace), and color, each scored 0 to 2. A common memory aid is APGAR for Appearance, Pulse, Grimace, Activity, and Respiration. Temperature, glucose, blood pressure, and weight are important newborn parameters but are not part of the Apgar score.
- A newborn at one minute has a heart rate of 90, slow irregular gasping respirations, some flexion of extremities, a grimace to suctioning, and a body that is pink with blue hands and feet. What is the Apgar score?
Correct answer: 5
The score is 5. Heart rate below 100 scores 1; slow irregular respirations score 1; some flexion scores 1; grimace scores 1; and pink body with blue extremities (acrocyanosis) scores 1, for a total of 5. A score of 4 to 6 indicates moderate depression and signals the need for stimulation and close monitoring, while the 1-minute score does not by itself dictate resuscitation.
- A nurse explains Apgar interpretation to a family. A 5-minute Apgar score of 7 to 10 is interpreted as:
- Inconclusive and requiring repeat scoring at 20 minutes
- Reassuring and within the normal range
- Severely depressed, requiring immediate intubation
- Moderately depressed, requiring positive pressure ventilation
Correct answer: Reassuring and within the normal range
A 5-minute Apgar of 7 to 10 is reassuring and considered normal. A score of 4 to 6 is moderately depressed and 0 to 3 is severely depressed. The Apgar reflects the newborn's condition and response to resuscitation but is not used to guide resuscitation decisions or to predict long-term outcome; repeat scoring every 5 minutes up to 20 minutes is reserved for infants scoring below 7.
- The Apgar score should NOT be used to:
- Direct the moment-to-moment steps of neonatal resuscitation
- Trigger continued scoring when the 5-minute value is below 7
- Document a newborn's condition at one and five minutes
- Communicate the response to resuscitation over time
Correct answer: Direct the moment-to-moment steps of neonatal resuscitation
The Apgar score should not direct the moment-to-moment steps of neonatal resuscitation; resuscitation is guided by ongoing assessment of respirations, heart rate, and oxygenation, which is acted on within seconds rather than waiting for a 1-minute score. The Apgar is a standardized way to describe the newborn's condition and response over time and is extended past 5 minutes when the value remains below 7.
- On a routine newborn assessment, which finding is a normal variant rather than a sign of pathology?
- Grunting respirations with nasal flaring
- A bulging, tense anterior fontanelle at rest
- Cyanosis of the hands and feet at two hours of age
- A single transverse palmar crease
Correct answer: Cyanosis of the hands and feet at two hours of age
Acrocyanosis, bluish discoloration of the hands and feet, is a normal finding in the first 24 to 48 hours as peripheral circulation matures. A single transverse palmar crease can be associated with chromosomal anomalies, a tense bulging fontanelle suggests increased intracranial pressure, and grunting with nasal flaring signals respiratory distress, all of which warrant evaluation.
- During the initial newborn assessment a nurse notes the head circumference, length, and weight should be measured and plotted. The primary purpose of plotting these on a growth curve is to:
- Determine the dose of vitamin K
- Calculate the Apgar score
- Predict the timing of physiologic jaundice
- Classify the newborn by gestational age and identify growth abnormalities such as SGA or LGA
Correct answer: Classify the newborn by gestational age and identify growth abnormalities such as SGA or LGA
Plotting weight, length, and head circumference against gestational age classifies the newborn as appropriate, small, or large for gestational age (AGA, SGA, LGA) and flags growth abnormalities that carry distinct risks, such as hypoglycemia in SGA and LGA infants. These measures are not used to compute the Apgar or the vitamin K dose, and they do not predict jaundice timing.
- A nurse performs a gestational age assessment using the New Ballard Score. This tool estimates maturity based on:
- The mother's last menstrual period
- First-trimester ultrasound measurements
- Birth weight and length only
- Neuromuscular and physical maturity criteria
Correct answer: Neuromuscular and physical maturity criteria
The New Ballard Score estimates gestational age from a combination of neuromuscular maturity signs (such as posture, square window, and scarf sign) and physical maturity signs (such as skin, lanugo, plantar creases, and ear cartilage). It provides a postnatal maturity estimate that is independent of menstrual dating or ultrasound, which is valuable when dating is uncertain.
- Which newborn reflex is elicited by stroking the cheek and is essential for successful breastfeeding?
- Tonic neck reflex
- Rooting reflex
- Babinski reflex
- Moro reflex
Correct answer: Rooting reflex
The rooting reflex, in which the newborn turns the head and opens the mouth toward a cheek that is stroked, helps the infant locate the nipple for feeding. The Moro is the startle reflex, the Babinski is fanning of the toes to sole stimulation, and the tonic neck (fencing) reflex is a posture assumed when the head is turned; none of these directly support latching.
- A normal umbilical artery cord blood gas in a vigorous term newborn would most likely show:
- pH 7.55 with a base excess of +10 mmol/L
- pH 6.95 with a base deficit of 14 mmol/L
- pH 7.00 with a base deficit of 16 mmol/L
- pH 7.26 with a base excess of -3 mmol/L
Correct answer: pH 7.26 with a base excess of -3 mmol/L
An umbilical artery pH around 7.26 with a base excess near -3 mmol/L is within normal range for a healthy term newborn (mean arterial pH is roughly 7.24 to 7.27). A pH below 7.00 with a base deficit of 12 mmol/L or greater defines significant metabolic acidemia, and an alkalotic pH of 7.55 is not a typical newborn value.
- A cord arterial gas shows pH 6.96 and base deficit 13 mmol/L. This pattern is consistent with:
- Normal acid-base status
- Metabolic alkalosis
- Significant metabolic acidemia
- Pure respiratory acidemia
Correct answer: Significant metabolic acidemia
A pH below 7.00 combined with a base deficit of 12 mmol/L or more indicates significant metabolic acidemia, reflecting accumulated fixed acid from anaerobic metabolism during hypoxia. A pure respiratory acidemia would show a low pH with a relatively normal base excess (driven by high CO2), so the markedly negative base deficit here points to a metabolic, not purely respiratory, process.
- A cord gas reveals a low pH with an elevated PCO2 but a base excess within the normal range. The nurse interprets this as primarily:
- A laboratory error
- Respiratory acidemia
- Metabolic acidemia
- Mixed acidemia with severe organ injury
Correct answer: Respiratory acidemia
A low pH driven by elevated PCO2 with a normal base excess indicates respiratory acidemia, typically from impaired gas exchange such as acute cord compression, which causes CO2 to accumulate without significant accumulation of fixed acid. This pattern usually resolves quickly with effective ventilation and carries a better prognosis than metabolic acidemia with a large base deficit.
- When obtaining paired umbilical cord gases, the arterial sample (as opposed to the venous sample) best reflects:
- Amniotic fluid composition
- The newborn's first breath
- Maternal placental oxygenation
- The fetal metabolic and acid-base condition at birth
Correct answer: The fetal metabolic and acid-base condition at birth
The umbilical artery sample best reflects the fetal acid-base and metabolic condition because it carries blood away from the fetus to the placenta, capturing the products of fetal metabolism. The umbilical vein, carrying oxygenated blood from the placenta to the fetus, more closely mirrors placental and maternal status. Paired sampling lets clinicians confirm a true arterial draw.
- Which newborn is at greatest risk for hypoglycemia and should be screened in the first hours of life?
- A term infant with a 5-minute Apgar of 9
- An infant of a mother with poorly controlled gestational diabetes who is large for gestational age
- A 40-week infant who breastfed within the first hour
- A 39-week appropriate-for-gestational-age infant of a nondiabetic mother
Correct answer: An infant of a mother with poorly controlled gestational diabetes who is large for gestational age
The large-for-gestational-age infant of a diabetic mother is at high risk because chronic fetal hyperinsulinemia continues after the maternal glucose supply is cut at birth, driving glucose down. Other high-risk groups include SGA, preterm or late-preterm, and stressed infants. A healthy term AGA infant who fed early and has good Apgar scores is not a routine screening target.
- A late-preterm infant becomes jittery, has a weak high-pitched cry, poor feeding, and hypotonia at three hours of age. The nurse recognizes these as signs of:
- Normal transition
- Neonatal hypoglycemia
- Caput succedaneum
- Physiologic jaundice
Correct answer: Neonatal hypoglycemia
Jitteriness, a weak or high-pitched cry, poor feeding, hypotonia, lethargy, temperature instability, and apnea are classic signs of neonatal hypoglycemia. Because symptoms are nonspecific, a point-of-care glucose should be checked and confirmed by a laboratory method. Jaundice presents with yellow discoloration, and caput is scalp edema, neither of which produces these neurologic feeding signs.
- Per current AAP guidance, a symptomatic newborn in the first 24 hours with a confirmed glucose below which value warrants prompt intravenous glucose treatment?
- 40 mg/dL
- 20 mg/dL
- 50 mg/dL
- 55 mg/dL
Correct answer: 40 mg/dL
For a symptomatic newborn, a glucose below 40 mg/dL in the first 24 hours is the operational threshold prompting immediate intravenous glucose. Asymptomatic at-risk infants use lower tiered thresholds (about 25 mg/dL in the first 4 hours and 35 mg/dL from 4 to 24 hours) managed initially with feeding and rechecks, but a symptomatic infant near 40 mg/dL is treated promptly with IV dextrose.
- An asymptomatic at-risk newborn has a pre-feed screening glucose of 30 mg/dL at two hours of life. According to standard protocol, the appropriate first action is to:
- Administer oral glucose gel and discharge
- Feed the infant and recheck the glucose, escalating to IV dextrose if it remains low
- Withhold feeding and recheck in six hours
- Begin an immediate IV dextrose bolus
Correct answer: Feed the infant and recheck the glucose, escalating to IV dextrose if it remains low
For an asymptomatic at-risk infant with a low screening value, the standard first step is to feed (breast or formula), often with buccal dextrose gel, and recheck the glucose; if it remains below threshold or the infant becomes symptomatic, IV dextrose is started. Immediate IV bolus is reserved for symptomatic infants or very low or persistently low levels, so feeding and rechecking is the correct initial response here.
- Two hours after a forceps-assisted vaginal birth, a woman has a firm midline fundus but continues to pass a steady stream of bright red blood. The most likely source of this bleeding is:
- A genital tract laceration
- Uterine atony
- Retained placental fragments
- Disseminated intravascular coagulation
Correct answer: A genital tract laceration
Bright red bleeding in the presence of a firm, well-contracted uterus points to a genital tract laceration, especially after an operative vaginal birth. Atony produces a soft boggy uterus, and retained tissue typically prevents the uterus from staying firm. The nurse should anticipate inspection and repair of the cervix, vagina, or perineum.
- A woman who delivered a 4,300 g infant after a prolonged labor with oxytocin augmentation is at increased risk for postpartum hemorrhage primarily because these factors predispose to:
- Cervical laceration
- Retained placenta
- Uterine atony
- Coagulopathy
Correct answer: Uterine atony
An overdistended uterus (macrosomia), prolonged labor, and prolonged oxytocin exposure all predispose to uterine atony, the most common cause of postpartum hemorrhage, because an overworked or overstretched myometrium contracts poorly after birth. Recognizing these risk factors allows proactive management of the third stage and readiness for uterotonics.
- Quantitative blood loss (QBL) measurement is now recommended over visual estimation after birth because visual estimation tends to:
- Apply only to cesarean births
- Underestimate blood loss, delaying recognition of hemorrhage
- Be more accurate than weighing materials
- Overestimate blood loss, leading to unnecessary transfusion
Correct answer: Underestimate blood loss, delaying recognition of hemorrhage
Quantitative blood loss is recommended because visual estimation consistently underestimates actual blood loss, which delays recognition and treatment of hemorrhage. QBL uses weighed materials and graduated collection drapes to obtain a more accurate cumulative total for both vaginal and cesarean births, supporting earlier intervention.
- A nurse assessing lochia on the first postpartum day expects which normal finding?
- Lochia alba that is whitish-yellow
- Lochia rubra that is dark red with small clots
- Heavy bright red flow saturating a pad every 15 minutes
- Foul-smelling lochia serosa
Correct answer: Lochia rubra that is dark red with small clots
On day one, normal lochia is rubra: dark red and may contain small clots. Lochia progresses to serosa (pinkish-brown) around days 4 to 10 and then alba (whitish-yellow) afterward. Foul odor suggests infection, and saturating a pad every 15 minutes signals hemorrhage; neither is normal.
- During fundal assessment on the second postpartum day, where should the nurse expect to palpate the fundus of a normally involuting uterus?
- At the level of the symphysis pubis
- At the level of the umbilicus
- About one to two fingerbreadths below the umbilicus
- Two centimeters above the umbilicus
Correct answer: About one to two fingerbreadths below the umbilicus
By about 24 hours postpartum the fundus is at the umbilicus, then descends roughly one fingerbreadth per day; on day two it is expected one to two fingerbreadths below the umbilicus. A fundus rising above the umbilicus suggests a distended bladder or clots, and reaching the symphysis usually occurs near 10 to 14 days when the uterus is no longer palpable abdominally.
- A postpartum woman's fundus is boggy and displaced to the right above the umbilicus. After confirming a distended bladder, the most appropriate nursing action is to:
- Assist the woman to void or catheterize her, then reassess and massage the fundus
- Place the bed in Trendelenburg position
- Restrict oral fluids
- Administer methylergonovine immediately
Correct answer: Assist the woman to void or catheterize her, then reassess and massage the fundus
A fundus that is boggy and displaced upward and to the right is the classic sign of a full bladder preventing uterine contraction. Helping the woman void (or catheterizing if she cannot) relieves the pressure so the uterus can contract; the nurse then reassesses and massages the fundus. Uterotonics are added if the uterus stays boggy after the bladder is empty.
- A newborn at four hours of age has a respiratory rate of 78, mild grunting, and subcostal retractions but pink color on room air. The nurse recognizes the priority as:
- Ongoing respiratory assessment with oxygen saturation monitoring and notification per protocol
- Initiating phototherapy
- Documenting a normal transitional finding and taking no action
- Immediate intubation
Correct answer: Ongoing respiratory assessment with oxygen saturation monitoring and notification per protocol
Sustained tachypnea over 60, grunting, and retractions are signs of respiratory distress that require close monitoring of respiratory effort and oxygen saturation, with provider notification per unit protocol. These signs may reflect transient tachypnea of the newborn but should not be dismissed as normal. Intubation is premature when the infant is pink on room air, and phototherapy treats jaundice, not respiratory distress.
- Vitamin K is administered intramuscularly to all newborns shortly after birth in order to:
- Promote bilirubin conjugation
- Prevent hypoglycemia
- Stimulate surfactant production
- Prevent vitamin K deficiency bleeding (hemorrhagic disease of the newborn)
Correct answer: Prevent vitamin K deficiency bleeding (hemorrhagic disease of the newborn)
Vitamin K is given to prevent vitamin K deficiency bleeding, formerly called hemorrhagic disease of the newborn, because newborns have low vitamin K stores and a sterile gut that cannot yet synthesize it, leaving clotting factors deficient. It does not treat hypoglycemia, bilirubin metabolism, or surfactant, which are addressed by other measures.
- The most effective single nursing action to prevent heat loss in a newborn immediately after birth is to:
- Place the wet newborn under a radiant warmer without drying
- Bathe the newborn promptly to remove vernix
- Dry the newborn thoroughly and remove wet linens, then provide skin-to-skin contact or a warmer
- Position the newborn near an open window for fresh air
Correct answer: Dry the newborn thoroughly and remove wet linens, then provide skin-to-skin contact or a warmer
Drying the newborn thoroughly and removing wet linens prevents evaporative heat loss, the largest immediate threat, and skin-to-skin contact or a radiant warmer then maintains temperature. A wet infant under a warmer still loses heat by evaporation, early bathing increases cold stress, and air drafts cause convective loss.
- A nurse identifies a newborn at risk for cold stress. A key consequence the nurse monitors for is that cold stress can precipitate:
- Metabolic alkalosis
- Hyperglycemia and polycythemia
- Bradycardia and hypertension
- Hypoglycemia and increased oxygen consumption
Correct answer: Hypoglycemia and increased oxygen consumption
Cold stress increases the newborn's metabolic rate and oxygen consumption as the infant burns brown fat and glucose to generate heat, which can lead to hypoglycemia and, if oxygen demand outpaces supply, respiratory distress and metabolic acidosis. Preventing cold stress through a neutral thermal environment protects glucose stores and oxygenation.
- A woman who had a cesarean birth two days ago reports unilateral calf pain, warmth, and swelling. The priority nursing action is to:
- Elevate the leg and apply heat without further evaluation
- Apply firm compression and have her ambulate immediately
- Notify the provider and avoid manipulating the leg while anticipating diagnostic evaluation
- Vigorously massage the affected calf
Correct answer: Notify the provider and avoid manipulating the leg while anticipating diagnostic evaluation
Unilateral calf pain, warmth, and swelling postpartum raise concern for deep vein thrombosis; the nurse should notify the provider, avoid massaging or manipulating the leg (which could dislodge a clot), and anticipate evaluation such as duplex ultrasound. Pregnancy and cesarean birth heighten thromboembolism risk, so prompt recognition is essential.
- On the third postpartum day a woman has a temperature of 38.6 C, uterine tenderness, and malodorous lochia. These findings most likely indicate:
- Mastitis
- Endometritis
- Physiologic diaphoresis
- Normal milk-coming-in fever
Correct answer: Endometritis
Fever after the first 24 hours with uterine tenderness and foul-smelling lochia is characteristic of endometritis, a postpartum uterine infection that requires prompt provider notification and broad-spectrum antibiotics. Mastitis causes a tender, erythematous breast rather than uterine signs, and normal milk engorgement or postpartum diaphoresis does not produce a sustained fever with malodorous lochia.
- A nurse provides perineal care teaching to a woman with a third-degree laceration. The recommended approach to cleansing is to:
- Wipe from back to front to protect the laceration
- Scrub the area with soap and a washcloth several times daily
- Avoid all water contact until the sutures dissolve
- Use a peri-bottle to rinse front to back and pat dry from front to back
Correct answer: Use a peri-bottle to rinse front to back and pat dry from front to back
Cleansing front to back, using a peri-bottle to rinse and patting dry from front to back, prevents introducing rectal bacteria into the healing perineum and reduces infection risk. Wiping back to front or scrubbing the suture line increases contamination and trauma, and avoiding all hygiene would promote infection rather than prevent it.
- A breastfeeding mother on the fourth postpartum day reports bilateral firm, swollen, warm, tender breasts without redness or fever. The most appropriate nursing guidance is to:
- Begin antibiotics for mastitis
- Stop breastfeeding until the swelling resolves
- Continue frequent breastfeeding and apply cold compresses between feedings for comfort
- Apply tight breast binding and restrict fluids
Correct answer: Continue frequent breastfeeding and apply cold compresses between feedings for comfort
Bilateral firm, warm, tender breasts without focal redness or systemic fever describe engorgement, which is best managed by continuing frequent effective breastfeeding to keep milk flowing, with cold compresses between feedings for comfort and brief warmth before feeding to aid letdown. Stopping nursing worsens engorgement, antibiotics are for mastitis (a localized infection), and tight binding can suppress supply and cause discomfort.
- Which assessment finding in a newborn most strongly suggests pathologic rather than physiologic jaundice?
- A peak bilirubin around day three that then declines
- Jaundice limited to the face on day two
- Jaundice appearing within the first 24 hours of life
- Visible jaundice appearing at 48 hours of age
Correct answer: Jaundice appearing within the first 24 hours of life
Jaundice appearing within the first 24 hours of life is considered pathologic and demands prompt evaluation because it often reflects hemolysis, such as ABO or Rh incompatibility. Physiologic jaundice typically appears after 24 hours, peaks around days three to five, and resolves; jaundice limited to the face later in transition is commonly physiologic.
- A late-preterm newborn is being prepared for early discharge. The nurse identifies this infant as needing close follow-up primarily because late-preterm infants are at higher risk for:
- Hypoglycemia, hyperbilirubinemia, feeding difficulty, and temperature instability
- Congenital heart block
- Polydactyly and cleft palate
- Meconium ileus
Correct answer: Hypoglycemia, hyperbilirubinemia, feeding difficulty, and temperature instability
Late-preterm infants (34 0/7 to 36 6/7 weeks) are physiologically immature and at higher risk for hypoglycemia, hyperbilirubinemia, poor feeding, temperature instability, and respiratory problems, which is why they need careful feeding assessment and early follow-up after discharge. The other listed conditions are unrelated to late-preterm status.
- A woman saturates a perineal pad within 10 minutes and reports lightheadedness; her pulse is 118 and blood pressure 92/58. After calling for help and massaging the fundus, the nurse's next priority is to:
- Ensure IV access and begin fluid resuscitation while administering ordered uterotonics
- Encourage ambulation to promote uterine tone
- Document the findings and continue routine assessment
- Apply a cold pack to the perineum
Correct answer: Ensure IV access and begin fluid resuscitation while administering ordered uterotonics
Rapid pad saturation with tachycardia and hypotension signals active hemorrhage with early hypovolemia; after summoning help and massaging the fundus, the nurse ensures large-bore IV access, begins fluid resuscitation, and gives ordered uterotonics such as oxytocin. Ambulation and cold packs do nothing to restore volume or tone, and documentation alone delays life-saving care.
- During newborn skin assessment, the nurse documents small white papules on the nose and chin that the parents are worried about. The nurse correctly identifies these as:
- Erythema toxicum requiring isolation
- Petechiae suggesting infection
- Milia, a benign self-limiting finding
- Mongolian spots requiring evaluation
Correct answer: Milia, a benign self-limiting finding
Milia are tiny white papules from plugged sebaceous glands, most often on the nose and chin; they are benign, require no treatment, and resolve on their own within weeks. The nurse should reassure parents not to squeeze them. Mongolian spots are flat bluish-gray pigmented areas, petechiae warrant evaluation for clotting or infection, and erythema toxicum is a benign rash that does not require isolation.