- A nurse reviews a head CT showing a biconvex, lens-shaped hyperdensity that does not cross suture lines. Which intracranial hemorrhage does this finding most strongly indicate?
- Epidural hematoma
- Subdural hematoma
- Subarachnoid hemorrhage
- Intraventricular hemorrhage
Correct answer: Epidural hematoma
This describes an epidural hematoma. The classic biconvex (lens-shaped) appearance that respects cranial suture lines reflects arterial bleeding, usually from the middle meningeal artery, collecting between the skull and dura. A subdural collection appears crescent-shaped and crosses suture lines.
- A 19-year-old is struck in the temple with a baseball, briefly loses consciousness, then is alert and conversant for about 45 minutes before rapidly deteriorating into obtundation. This lucid interval is most characteristic of which injury?
- Diffuse axonal injury
- Chronic subdural hematoma
- Concussion without hemorrhage
- Epidural hematoma
Correct answer: Epidural hematoma
The presentation indicates an epidural hematoma. A transient lucid interval followed by rapid decline is the textbook pattern, caused by arterial bleeding from the middle meningeal artery that expands until brainstem compression occurs. Prompt neurosurgical evacuation is the priority.
- Which artery is most commonly the source of bleeding in a classic epidural hematoma following a temporal bone fracture?
- Anterior cerebral artery
- Posterior communicating artery
- Basilar artery
- Middle meningeal artery
Correct answer: Middle meningeal artery
The middle meningeal artery is the answer. It runs beneath the thin temporal bone, so a temporal fracture readily tears it, producing the rapid arterial bleed seen in epidural hematoma. This is why temporal trauma carries elevated epidural hematoma risk.
- A 78-year-old on warfarin presents with a 2-week history of progressive confusion and headache after a minor fall. CT shows a crescent-shaped collection crossing suture lines. Which injury and mechanism best explain this?
- Acute epidural hematoma from arterial tear
- Subarachnoid hemorrhage from aneurysm
- Diffuse axonal injury from shearing
- Subdural hematoma from bridging vein rupture
Correct answer: Subdural hematoma from bridging vein rupture
This is a subdural hematoma from bridging vein rupture. The crescent shape that crosses sutures, slow venous bleeding, advanced age, brain atrophy, and anticoagulation all favor a chronic/subacute subdural with insidious onset rather than the rapid arterial course of an epidural.
- Compared with an epidural hematoma, a subdural hematoma classically results from injury to which structure?
- Middle meningeal artery
- Circle of Willis
- Bridging veins between cortex and dural sinuses
- Carotid siphon
Correct answer: Bridging veins between cortex and dural sinuses
Bridging veins are the source. Subdural hematomas arise from tearing of veins bridging the cortical surface to the dural venous sinuses, producing slower venous bleeding. Epidural hematomas, by contrast, stem from arterial injury, typically the middle meningeal artery.
- A trauma patient is classified with a chronic subdural hematoma. Which timing best fits this designation from the moment of injury?
- Within the first 48 hours
- More than 3 weeks
- 3 to 14 days
- Within 6 hours
Correct answer: More than 3 weeks
More than 3 weeks defines a chronic subdural hematoma. Acute subdurals present within 48 hours, subacute roughly 3 to 14 days, and chronic beyond about 3 weeks. The chronic form often follows minor trauma in older adults with subtle, slowly progressive symptoms.
- A trauma nurse observes a head-injured patient develop rising systolic blood pressure, a heart rate falling to 44, and irregular respirations. This combination is best recognized as which finding?
- Neurogenic shock
- Beck's triad
- Spinal shock
- Cushing's triad
Correct answer: Cushing's triad
This is Cushing's triad. Hypertension with a widening pulse pressure, bradycardia, and irregular respirations signals dangerously elevated intracranial pressure and impending brain herniation. It is a late and ominous sign requiring immediate intervention to lower ICP.
- Cushing's triad in a head-injured patient is the body's late response to which underlying problem?
- Massive external hemorrhage
- Severely elevated intracranial pressure
- Loss of sympathetic tone below a cord lesion
- Tension pneumothorax
Correct answer: Severely elevated intracranial pressure
Severely elevated intracranial pressure is the cause. As ICP rises and threatens brainstem perfusion, a reflex surge in blood pressure, compensatory bradycardia, and respiratory irregularity emerge. Recognizing Cushing's triad should trigger urgent ICP-lowering measures, not delay.
- Which set of vital sign changes constitutes Cushing's triad?
- Hypotension, tachycardia, and tachypnea
- Hypertension, bradycardia, and irregular respirations
- Hypotension, bradycardia, and warm dry skin
- Hypertension, tachycardia, and shallow breathing
Correct answer: Hypertension, bradycardia, and irregular respirations
Hypertension, bradycardia, and irregular respirations make up Cushing's triad. The widened pulse pressure with a slow heart rate and abnormal breathing pattern reflect brainstem compression from raised intracranial pressure and demand emergent treatment.
- What is the lowest possible total score on the Glasgow Coma Scale?
Correct answer: 3
The lowest possible score is 3. Each of the three components, eye, verbal, and motor, has a minimum value of 1, so even a completely unresponsive patient scores 3 rather than 0. A score of 3 reflects the most severe impairment.
- A head-injured trauma patient has a Glasgow Coma Scale total of 7. Based on standard severity classification, this finding indicates what level of traumatic brain injury and what airway priority?
- Mild TBI; routine monitoring
- Moderate TBI; supplemental oxygen only
- Severe TBI; prepare for definitive airway protection
- Severe TBI; no airway concern if breathing spontaneously
Correct answer: Severe TBI; prepare for definitive airway protection
A GCS of 7 indicates severe TBI and a need to prepare for definitive airway protection. A GCS of 8 or below signals the patient cannot reliably protect the airway, so intubation is typically indicated to prevent aspiration and ensure ventilation.
- Which Glasgow Coma Scale motor response score is assigned when a patient withdraws from a painful stimulus but does not localize to it?
Correct answer: 4
Withdrawal from pain scores 4 on the motor component. Localizing pain scores 5, obeying commands scores 6, abnormal flexion (decorticate) scores 3, and extension (decerebrate) scores 2. Distinguishing withdrawal from localization is key to accurate scoring.
- A trauma patient demonstrates rigid extension of the arms with internal rotation and plantarflexion in response to pain. This posturing is termed what, and what does it suggest?
- Decorticate posturing; cortical injury
- Flaccid response; spinal shock
- Decerebrate posturing; brainstem-level injury
- Withdrawal; intact cortex
Correct answer: Decerebrate posturing; brainstem-level injury
This is decerebrate posturing, suggesting brainstem-level injury. Rigid arm extension with internal rotation reflects damage at or below the midbrain and is generally more ominous than decorticate posturing, signaling deeper neurologic compromise.
- A head-injured patient flexes the arms and pulls them toward the chest while extending the legs in response to noxious stimuli. How is this posturing classified?
- Decerebrate posturing
- Opisthotonos
- Spinal reflex
- Decorticate posturing
Correct answer: Decorticate posturing
This is decorticate posturing. Arm flexion drawing toward the core with leg extension localizes the lesion above the midbrain. While serious, decorticate posturing generally indicates a higher and less ominous lesion than decerebrate extension.
- When a previously decorticate trauma patient progresses to decerebrate posturing, the nurse should interpret this change as what?
- Improvement in neurologic status
- A normal fluctuation requiring no action
- Deterioration with caudal progression of brain injury
- Evidence of spinal cord rather than brain injury
Correct answer: Deterioration with caudal progression of brain injury
The change indicates deterioration with downward progression of injury. Movement from decorticate flexion to decerebrate extension signals the lesion is extending toward the brainstem, an emergent worsening that warrants immediate provider notification and reassessment.
- A patient with a basilar skull fracture has clear fluid draining from the nose. The nurse places a drop on filter paper and observes a central blood spot surrounded by a clear ring. What does this halo sign suggest?
- Normal nasal secretions
- Purulent sinus drainage
- Cerebrospinal fluid mixed with blood
- Aqueous humor leakage
Correct answer: Cerebrospinal fluid mixed with blood
The halo sign suggests cerebrospinal fluid mixed with blood. CSF separates from blood on absorbent paper, forming a clear ring around a central bloody spot. This finding indicates a dural tear and CSF rhinorrhea, raising meningitis risk. The halo sign is suggestive but not definitive.
- Which bedside test supports that clear fluid draining from a trauma patient's ear is cerebrospinal fluid rather than serous drainage?
- Fluid tests positive for glucose
- Fluid is strongly acidic on pH strip
- Fluid clots rapidly
- Fluid is opaque and yellow
Correct answer: Fluid tests positive for glucose
A positive glucose test supports CSF otorrhea. Cerebrospinal fluid contains glucose, whereas normal mucus and tears do not in significant amounts, so glucose-positive ear drainage after head trauma points to a CSF leak from a basilar skull fracture. Glucose testing can give false results, so beta-2 transferrin is confirmatory.
- A trauma patient with suspected CSF rhinorrhea asks why he should avoid blowing his nose. What is the nurse's best response?
- It may force air or bacteria intracranially and worsen the leak
- It could dislodge the nasal packing
- It will increase tear production
- It has no effect and is only a comfort measure
Correct answer: It may force air or bacteria intracranially and worsen the leak
Nose blowing may force air or bacteria intracranially and worsen the leak. With a dural defect, increasing nasopharyngeal pressure risks pneumocephalus and ascending meningitis, so patients with CSF rhinorrhea are instructed to avoid nose blowing, sneezing with a closed mouth, and straining.
- During assessment of a head-trauma patient, the nurse notes bruising over the mastoid process behind the ear that developed hours after injury. This Battle's sign indicates what?
- Mandibular fracture
- Orbital blowout fracture
- Basilar skull fracture
- Cervical strain
Correct answer: Basilar skull fracture
Battle's sign indicates a basilar skull fracture. Ecchymosis over the mastoid process reflects bleeding tracking from a fracture of the skull base. It typically appears in a delayed fashion and should prompt evaluation for associated CSF leak and cranial nerve injury.
- Why does Battle's sign typically appear hours to days after the initial trauma rather than immediately?
- It requires a second impact to develop
- It only appears once intracranial pressure normalizes
- Blood must track from the skull base to surface at the mastoid
- It depends on antibiotic administration
Correct answer: Blood must track from the skull base to surface at the mastoid
Blood must track from the skull base to surface at the mastoid, which causes the delay. Because the bleeding originates deep at the fracture site, the ecchymosis takes time to become visible behind the ear, so absence early on does not rule out a basilar fracture.
- A trauma patient presents with bilateral periorbital ecchymosis without direct eye trauma. This raccoon eyes finding most likely reflects which underlying injury?
- Direct globe rupture
- Mandibular dislocation
- Basilar skull fracture
- Le Fort I fracture
Correct answer: Basilar skull fracture
Raccoon eyes most likely reflect a basilar skull fracture. Periorbital bruising in the absence of direct ocular impact results from blood tracking forward from an anterior skull base fracture, paralleling Battle's sign at the mastoid.
- A nurse documents raccoon eyes and Battle's sign in the same trauma patient. Together these signs should heighten suspicion for what additional complication?
- Cerebrospinal fluid leak and meningitis risk
- Acute compartment syndrome
- Hypovolemic shock from external bleeding
- Pulmonary contusion
Correct answer: Cerebrospinal fluid leak and meningitis risk
They heighten suspicion for a CSF leak and meningitis risk. Both signs mark a basilar skull fracture, which frequently disrupts the dura and allows CSF rhinorrhea or otorrhea, creating a pathway for bacteria and elevating central nervous system infection risk.
- A trauma patient sustained a high-speed deceleration injury and has a poor neurologic exam with a near-normal initial CT. The injury most consistent with this picture is which one?
- Epidural hematoma
- Linear skull fracture
- Subdural hematoma
- Diffuse axonal injury
Correct answer: Diffuse axonal injury
Diffuse axonal injury best fits. DAI arises from rotational acceleration-deceleration forces that shear axons throughout the white matter, often producing profound neurologic impairment despite minimal early CT findings. MRI is more sensitive for detecting it.
- What is the primary mechanism of injury in diffuse axonal injury?
- Direct penetrating laceration of cortex
- Compression by an expanding arterial clot
- Ischemia from carotid occlusion
- Shearing of axons from rotational acceleration-deceleration forces
Correct answer: Shearing of axons from rotational acceleration-deceleration forces
The mechanism is shearing of axons from rotational acceleration-deceleration forces. Rapid angular movement of the brain stretches and tears axonal fibers at gray-white junctions and the corpus callosum, explaining the widespread dysfunction characteristic of DAI.
- A nurse manages a patient with elevated intracranial pressure after TBI. Which head-of-bed and head position best promotes cerebral venous drainage?
- Head of bed flat with neck flexed
- Trendelenburg position
- Head of bed at 30 degrees with the head turned sharply to one side
- Head of bed at 30 degrees with the head midline
Correct answer: Head of bed at 30 degrees with the head midline
Head of bed at 30 degrees with the head midline is best. Elevating the head about 30 degrees and keeping the neck neutral prevents jugular compression and promotes venous outflow, helping lower intracranial pressure. Sharp head turning or flat positioning can impede drainage.
- Which osmotic agent is commonly administered to acutely reduce intracranial pressure in a patient with a traumatic brain injury?
- Normal saline at maintenance rate
- Furosemide as first-line
- Mannitol
- Dextrose 5 percent in water
Correct answer: Mannitol
Mannitol is the answer. As an osmotic diuretic, mannitol draws fluid from brain tissue into the vasculature, lowering intracranial pressure. Nurses monitor serum osmolality, renal function, and fluid status during therapy. Hypertonic saline is an alternative.
- Cerebral perfusion pressure is calculated using which relationship?
- Mean arterial pressure minus intracranial pressure
- Systolic blood pressure minus diastolic blood pressure
- Intracranial pressure minus central venous pressure
- Mean arterial pressure plus intracranial pressure
Correct answer: Mean arterial pressure minus intracranial pressure
Cerebral perfusion pressure equals mean arterial pressure minus intracranial pressure. This calculation expresses the net pressure driving blood flow to the brain, so a rising ICP or falling MAP reduces CPP and threatens cerebral ischemia in TBI patients.
- A TBI patient has a mean arterial pressure of 80 mmHg and an intracranial pressure of 25 mmHg. The nurse calculates a cerebral perfusion pressure of what value, and how should this be interpreted?
- 105 mmHg; dangerously high
- 55 mmHg; below the generally recommended minimum
- 55 mmHg; well within target
- 25 mmHg; adequate
Correct answer: 55 mmHg; below the generally recommended minimum
The CPP is 55 mmHg, which is below the generally recommended minimum. Subtracting ICP of 25 from MAP of 80 yields 55, beneath the commonly targeted range of roughly 60 to 70 mmHg, signaling inadequate cerebral perfusion that requires intervention.
- While caring for a TBI patient with elevated ICP, the nurse notes that prolonged hyperventilation is generally avoided because it can cause what?
- Cerebral vasodilation and worsened ICP
- Excessive cerebral vasoconstriction and ischemia
- Hyperkalemia
- Increased CSF production
Correct answer: Excessive cerebral vasoconstriction and ischemia
Aggressive prolonged hyperventilation causes excessive cerebral vasoconstriction and ischemia. Lowering carbon dioxide constricts cerebral vessels and can transiently reduce ICP, but sustained or aggressive use risks reducing blood flow below ischemic thresholds, so it is reserved for impending herniation.
- A patient with a complete spinal cord injury at T4 presents with hypotension, a heart rate of 50, and warm, dry skin below the lesion. Which condition best explains this presentation?
- Hypovolemic shock
- Cardiogenic shock
- Septic shock
- Neurogenic shock
Correct answer: Neurogenic shock
This is neurogenic shock. Loss of sympathetic outflow below a high cord lesion produces vasodilation with hypotension, unopposed vagal tone causing bradycardia, and warm dry skin. This distinct profile separates it from the cool, clammy, tachycardic picture of hypovolemia.
- Which feature most reliably distinguishes neurogenic shock from hypovolemic shock in a trauma patient?
- Bradycardia with warm skin rather than tachycardia with cool skin
- Elevated lactate in neurogenic shock only
- Hypertension in neurogenic shock
- Absence of hypotension in neurogenic shock
Correct answer: Bradycardia with warm skin rather than tachycardia with cool skin
Bradycardia with warm, dry skin distinguishes neurogenic shock. The loss of sympathetic tone leaves vagal influence unopposed, producing a slow heart rate and warm skin, in contrast to the compensatory tachycardia and cool, clammy skin of hypovolemic shock.
- After fluid resuscitation fails to correct hypotension in a patient with neurogenic shock, which intervention is most appropriate?
- Apply a tourniquet to the lower extremities
- Continue rapid crystalloid boluses indefinitely
- Administer a vasopressor to restore vascular tone
- Withhold all further treatment
Correct answer: Administer a vasopressor to restore vascular tone
Administering a vasopressor to restore vascular tone is appropriate. Because neurogenic shock stems from vasodilation rather than volume loss, patients who remain hypotensive after judicious fluids need vasopressor support, and atropine may be added for symptomatic bradycardia.
- A patient with an acute thoracic spinal cord injury has flaccid paralysis, absent reflexes, and loss of sensation below the lesion immediately after injury. This transient state is best described as what?
- Autonomic dysreflexia
- Central cord syndrome
- Brown-Sequard syndrome
- Spinal shock
Correct answer: Spinal shock
This is spinal shock. The immediate, temporary loss of all reflex activity, flaccid paralysis, and sensory loss below the injury reflects abrupt physiologic disruption of cord function. Reflexes gradually return as spinal shock resolves, which may unmask the true extent of injury.
- Which finding most clearly signals that spinal shock is beginning to resolve in a patient with a spinal cord injury?
- Return of reflex activity such as the bulbocavernosus reflex
- Onset of warm, dry skin
- Sudden severe hypertension
- Permanent loss of all sensation
Correct answer: Return of reflex activity such as the bulbocavernosus reflex
Return of reflex activity, such as the bulbocavernosus reflex, signals resolution of spinal shock. The reappearance of reflexes below the lesion marks the end of the transient areflexic period and allows clinicians to better characterize whether the cord injury is complete or incomplete.
- How does spinal shock differ fundamentally from neurogenic shock?
- Spinal shock is a hemodynamic shock state; neurogenic shock is a loss of reflexes
- They are identical terms
- Spinal shock only occurs with brain injury
- Spinal shock is a transient loss of reflex function; neurogenic shock is a distributive hemodynamic state
Correct answer: Spinal shock is a transient loss of reflex function; neurogenic shock is a distributive hemodynamic state
Spinal shock is a transient loss of reflex function below the lesion, whereas neurogenic shock is a distributive hemodynamic state with hypotension and bradycardia. One describes neurologic reflex suppression; the other describes circulatory collapse from lost sympathetic tone, and they may coexist.
- A patient with a hemisection of the spinal cord has ipsilateral motor weakness with loss of proprioception and contralateral loss of pain and temperature sensation below the lesion. This pattern defines which syndrome?
- Central cord syndrome
- Anterior cord syndrome
- Brown-Sequard syndrome
- Cauda equina syndrome
Correct answer: Brown-Sequard syndrome
This defines Brown-Sequard syndrome. A cord hemisection interrupts the descending corticospinal and dorsal column pathways on the same side, while the spinothalamic tract decussates, producing contralateral loss of pain and temperature. The crossed deficit pattern is its hallmark.
- Brown-Sequard syndrome is most classically associated with which mechanism of trauma?
- Blunt hyperextension in an older adult
- Penetrating injury such as a stab wound to one side of the cord
- Crush injury to both legs
- Whiplash without fracture
Correct answer: Penetrating injury such as a stab wound to one side of the cord
Penetrating injury, such as a stab wound to one side of the cord, classically causes Brown-Sequard syndrome. Because the lesion involves a hemisection, a sharp penetrating wound affecting half the cord produces the characteristic ipsilateral motor and contralateral sensory deficits.
- An older adult sustains a hyperextension neck injury in a fall and now has greater weakness in the arms than the legs. Which incomplete cord syndrome does this most likely represent?
- Brown-Sequard syndrome
- Anterior cord syndrome
- Posterior cord syndrome
- Central cord syndrome
Correct answer: Central cord syndrome
This most likely represents central cord syndrome. Hyperextension injuries, common in older adults with cervical spondylosis, damage the central cord region where upper-extremity motor fibers travel, producing disproportionate arm weakness compared with the legs.
- Why does central cord syndrome characteristically cause greater motor deficit in the upper extremities than the lower extremities?
- Leg fibers cross at the medulla and are spared
- The lumbar cord is more vascular
- Upper-extremity nerves bypass the cord entirely
- Arm motor fibers are arranged more centrally in the corticospinal tract
Correct answer: Arm motor fibers are arranged more centrally in the corticospinal tract
Arm motor fibers are arranged more centrally in the corticospinal tract, so central cord damage affects them preferentially. The somatotopic organization places upper-extremity fibers medially, explaining why a central lesion produces upper-extremity weakness out of proportion to the legs.
- A patient with a spinal cord injury at T5 suddenly develops a pounding headache, blood pressure of 210/110, flushing above the lesion, and bradycardia. What is the most likely cause?
- Neurogenic shock
- Spinal shock
- Hypovolemia
- Autonomic dysreflexia
Correct answer: Autonomic dysreflexia
This is autonomic dysreflexia. A noxious stimulus below a cord lesion at or above T6 triggers an unopposed sympathetic surge, causing severe hypertension, pounding headache, and flushing above the lesion with reflex bradycardia. It is a hypertensive emergency.
- When a patient with a high spinal cord injury develops autonomic dysreflexia, what is the nurse's immediate priority action?
- Sit the patient upright and search for the noxious trigger such as a distended bladder
- Lay the patient flat and elevate the legs
- Administer a fluid bolus
- Place the patient in Trendelenburg
Correct answer: Sit the patient upright and search for the noxious trigger such as a distended bladder
Sitting the patient upright and searching for the noxious trigger, such as a distended bladder, is the priority. Upright positioning uses gravity to lower blood pressure while the nurse rapidly identifies and removes the stimulus, most often bladder distension or fecal impaction.
- Which is the single most common precipitating trigger for autonomic dysreflexia in patients with spinal cord injury?
- Bladder distension
- Bright light exposure
- Loud noise
- Mild dehydration
Correct answer: Bladder distension
Bladder distension is the most common trigger. A full or obstructed bladder is the leading noxious stimulus that provokes the reflex sympathetic surge, so checking the urinary catheter for kinks and ensuring drainage is a first-line response in autonomic dysreflexia.
- Autonomic dysreflexia is generally limited to spinal cord injuries occurring at or above which spinal level?
Correct answer: T6
Autonomic dysreflexia occurs with injuries at or above T6. Above this level, the splanchnic sympathetic outflow is disconnected from higher inhibitory control, allowing an unchecked reflex pressor response. Injuries below T6 generally lack the mass sympathetic response needed.
- A trauma patient struck in the face presents with blood layered in the anterior chamber of the eye and reports blurred vision. This finding is termed what?
- Subconjunctival hemorrhage
- Periorbital ecchymosis
- Corneal abrasion
- Hyphema
Correct answer: Hyphema
This is a hyphema. Blood pooling in the anterior chamber of the eye after blunt ocular trauma defines a hyphema and can impair vision and raise intraocular pressure. It is distinct from surface subconjunctival bleeding, which does not involve the anterior chamber.
- Which positioning intervention helps blood settle and supports healing in a patient with a traumatic hyphema?
- Keep the patient flat and supine
- Place the patient in Trendelenburg
- Have the patient lie prone
- Elevate the head of the bed and limit activity
Correct answer: Elevate the head of the bed and limit activity
Elevating the head of the bed and limiting activity is appropriate. Raising the head lets layered blood settle inferiorly away from the visual axis and reduces rebleeding risk, while activity restriction and avoiding straining help protect the injured anterior chamber.
- A patient struck in the eye with a fist now has restricted upward gaze, double vision, and numbness of the cheek. CT shows an orbital floor fracture. What complication is causing the restricted gaze?
- Hyphema
- Optic nerve transection
- Lens dislocation
- Entrapment of the inferior rectus muscle
Correct answer: Entrapment of the inferior rectus muscle
Entrapment of the inferior rectus muscle is causing the restricted upward gaze. In an orbital blowout fracture, the orbital floor gives way and tissue or the inferior rectus muscle can herniate and become trapped, producing diplopia and limited upward eye movement.
- In an orbital blowout fracture, the infraorbital nerve injury commonly produces which sensory finding?
- Numbness of the cheek and upper lip
- Loss of hearing
- Tongue paresthesia
- Loss of smell
Correct answer: Numbness of the cheek and upper lip
Numbness of the cheek and upper lip is the finding. The infraorbital nerve runs along the orbital floor, so a blowout fracture can injure it, causing diminished sensation over the cheek, lateral nose, and upper lip on the affected side.
- A maxillofacial trauma patient has a fracture pattern in which only the maxillary alveolar ridge and lower maxilla move independently, separating the teeth-bearing segment horizontally. This is classified as which Le Fort fracture?
- Le Fort I
- Le Fort II
- Le Fort III
- Le Fort IV
Correct answer: Le Fort I
This is a Le Fort I fracture. It is a horizontal fracture across the lower maxilla that separates the alveolar ridge and palate from the rest of the midface, allowing the lower maxilla and teeth to move as a unit while the upper structures remain fixed.
- A Le Fort III fracture is best characterized by which description?
- Isolated horizontal fracture of the lower maxilla
- Pyramidal fracture involving the nasal bridge and maxilla
- Complete craniofacial disjunction separating the midface from the skull base
- Fracture limited to the orbital floor
Correct answer: Complete craniofacial disjunction separating the midface from the skull base
A Le Fort III is a complete craniofacial disjunction separating the midface from the skull base. This most severe pattern detaches the entire midfacial skeleton from the cranium, often accompanies serious intracranial and airway concerns, and may produce a free-floating face.
- A patient with a high Le Fort midface fracture has noisy breathing and pooling blood in the oropharynx. What is the nurse's highest priority?
- Obtain dental impressions
- Secure and protect the airway
- Apply a cold pack to the face
- Document the fracture classification
Correct answer: Secure and protect the airway
Securing and protecting the airway is the highest priority. Midface fractures threaten airway patency through bleeding, edema, and displaced bony segments, so airway management precedes all other concerns following the trauma ABCDE approach.
- A trauma patient has clear otorrhea, hemotympanum, and decreased hearing after a blunt blow to the side of the head. These findings together most strongly suggest what injury?
- Temporal lobe contusion
- Basilar skull fracture
- Mandibular fracture
- Cervical spine fracture
Correct answer: Basilar skull fracture
These findings most strongly suggest a basilar skull fracture. Hemotympanum, CSF otorrhea, and hearing loss reflect a fracture through the skull base near the temporal bone, which can disrupt the dura and structures of the middle and inner ear.
- Why are nasogastric tubes generally avoided in favor of orogastric tubes when a basilar skull fracture is suspected?
- Nasal insertion risks passing the tube intracranially through the fracture
- Orogastric tubes are easier to secure
- Nasal tubes cause more nausea
- Orogastric tubes drain faster
Correct answer: Nasal insertion risks passing the tube intracranially through the fracture
Nasal insertion risks passing the tube intracranially through the fracture. A basilar skull fracture can breach the cribriform plate, so a blindly advanced nasogastric tube could enter the cranial vault; the oral route avoids this catastrophic complication.
- Which cranial nerve assessment is most relevant when a basilar skull fracture is suspected to involve the temporal bone?
- Olfaction testing only
- Facial movement and hearing
- Tongue strength only
- Shoulder shrug only
Correct answer: Facial movement and hearing
Assessing facial movement and hearing is most relevant. The facial and vestibulocochlear nerves travel through the temporal bone, so a temporal basilar fracture can impair facial symmetry and hearing, making these cranial nerve checks essential to detect injury.
- A nurse classifies a traumatic brain injury as severe when the patient's Glasgow Coma Scale falls within which range?
- 13 to 15
- 9 to 12
- 3 to 8
- Below 1
Correct answer: 3 to 8
A GCS of 3 to 8 defines severe TBI. Scores of 13 to 15 indicate mild injury and 9 to 12 indicate moderate injury. Recognizing the severe range guides decisions about airway protection, intensive monitoring, and ICP management.
- A trauma patient with a head injury develops a fixed, dilated pupil on one side that no longer reacts to light. This unilateral blown pupil most concerning for what process?
- Normal aging change
- Uncal herniation compressing the oculomotor nerve
- Simple corneal abrasion
- Spinal shock
Correct answer: Uncal herniation compressing the oculomotor nerve
A unilateral fixed, dilated pupil is most concerning for uncal herniation compressing the oculomotor nerve. Rising intracranial pressure can push the uncus against cranial nerve III, abolishing the pupillary light reflex on that side, an emergent herniation sign.
- A patient with a confirmed unstable cervical spine fracture must be moved. Which technique best protects the spinal cord during repositioning?
- Allow the patient to move independently
- Flex the neck forward to clear the airway
- Log roll with the spine maintained in neutral alignment
- Lift the patient by the shoulders and hips separately
Correct answer: Log roll with the spine maintained in neutral alignment
Log rolling while maintaining neutral spinal alignment best protects the cord. Coordinated turning that keeps the head, neck, and trunk in a straight line prevents twisting or flexion that could displace an unstable fracture and worsen cord injury.
- A trauma patient is suspected of having a traumatic CSF leak. Which laboratory marker, when present in the drainage, is most specific for cerebrospinal fluid?
- Beta-2 transferrin
- Elevated potassium
- Lactate dehydrogenase
- C-reactive protein
Correct answer: Beta-2 transferrin
Beta-2 transferrin is most specific for cerebrospinal fluid. This protein is found almost exclusively in CSF, so its detection in nasal or ear drainage confirms a CSF leak more reliably than glucose testing, which can yield false results.
- In a patient with an expanding epidural hematoma, which sequence of pupillary and motor findings would most suggest impending herniation requiring emergent decompression?
- Equal reactive pupils with improving GCS
- Ipsilateral fixed dilated pupil with contralateral weakness and declining GCS
- Bilateral constricted pupils with stable GCS
- No pupillary change with rising GCS
Correct answer: Ipsilateral fixed dilated pupil with contralateral weakness and declining GCS
An ipsilateral fixed, dilated pupil with contralateral weakness and a declining GCS most suggests impending herniation. The expanding clot compresses the oculomotor nerve on the same side and the motor pathways affecting the opposite body, signaling the need for emergent surgical decompression.
- A nurse compares two head-injured patients. Patient A has a rapidly expanding arterial bleed with a lucid interval; Patient B has a slow venous bleed in an atrophic brain. Which statement correctly pairs each with its hematoma type?
- Patient A subdural, Patient B epidural
- Patient A epidural, Patient B subdural
- Both are subarachnoid hemorrhages
- Patient A diffuse axonal injury, Patient B epidural
Correct answer: Patient A epidural, Patient B subdural
Patient A has an epidural and Patient B a subdural. The rapid arterial bleed with a lucid interval is the epidural pattern, while the slow venous bleed in an atrophic brain, typical of older adults, fits a subdural hematoma. Distinguishing the two guides urgency and intervention.
- When prioritizing care for a patient with severe TBI and rising intracranial pressure, which nursing action best supports the goal of preventing secondary brain injury?
- Cluster all care activities together to allow long rest periods
- Maintain normoxia, normocapnia, and adequate cerebral perfusion pressure
- Encourage Valsalva maneuvers to assess reflexes
- Keep the patient hypotensive to reduce bleeding
Correct answer: Maintain normoxia, normocapnia, and adequate cerebral perfusion pressure
Maintaining normoxia, normocapnia, and adequate cerebral perfusion pressure best prevents secondary injury. Avoiding hypoxia, abnormal carbon dioxide levels, and hypotension protects vulnerable brain tissue, whereas clustering care or permitting hypotension can spike ICP or reduce perfusion.
- A patient with a cervical spinal cord injury at C4 is at greatest immediate risk for which life-threatening complication?
- Respiratory failure from diaphragmatic involvement
- Acute kidney injury
- Lower-extremity compartment syndrome
- Liver laceration
Correct answer: Respiratory failure from diaphragmatic involvement
Respiratory failure from diaphragmatic involvement is the greatest immediate risk. The diaphragm is innervated by the phrenic nerve arising from C3 to C5, so a lesion at C4 can impair diaphragmatic function and ventilation, making airway and breathing the top priorities.
- A trauma patient with a midface fracture and CSF rhinorrhea is being prepared for airway management. Which intubation route consideration is most appropriate given the suspected skull base injury?
- Blind nasotracheal intubation is preferred
- Avoid the nasal route due to risk of intracranial passage
- Nasal route is safest because it avoids the oropharynx
- Defer all airway management until imaging is complete
Correct answer: Avoid the nasal route due to risk of intracranial passage
Avoiding the nasal route due to the risk of intracranial passage is most appropriate. A skull base fracture can allow a nasally placed device to enter the cranial vault, so orotracheal intubation is favored to secure the airway safely in these patients.
- A patient with a traumatic hyphema and a known history of sickle cell trait warrants closer monitoring primarily because of increased risk for what complication?
- Elevated intraocular pressure and impaired outflow from sickled cells
- Immediate retinal detachment
- Corneal ulceration
- Optic neuritis
Correct answer: Elevated intraocular pressure and impaired outflow from sickled cells
Elevated intraocular pressure from sickled cells obstructing outflow is the concern. In sickle cell trait, red cells can sickle in the anterior chamber and trabecular meshwork, raising intraocular pressure and threatening the optic nerve, so these patients need vigilant pressure monitoring.
- A patient with a spinal cord injury develops autonomic dysreflexia, and bladder drainage does not relieve it. Which next source should the nurse evaluate as a common trigger?
- Bright overhead lighting
- Fecal impaction or bowel distension
- Quiet environment
- Mild hunger
Correct answer: Fecal impaction or bowel distension
Fecal impaction or bowel distension is the next common trigger to evaluate. After ruling out bladder distension, the nurse should assess for impacted stool, since bowel distension is a leading noxious stimulus that perpetuates the dangerous hypertensive response in autonomic dysreflexia.
- A nurse is differentiating incomplete cord syndromes. A patient with preserved fine touch and proprioception but loss of pain and temperature sensation, plus motor weakness below the lesion, most likely has which syndrome?
- Anterior cord syndrome
- Central cord syndrome
- Brown-Sequard syndrome
- Posterior cord syndrome
Correct answer: Anterior cord syndrome
This pattern indicates anterior cord syndrome. Damage to the anterior two-thirds of the cord impairs the corticospinal and spinothalamic tracts, causing motor loss and loss of pain and temperature, while the dorsal columns carrying fine touch and proprioception remain intact.
- A trauma patient with a basilar skull fracture and CSF otorrhea should be educated to avoid which action during recovery to reduce meningitis and pneumocephalus risk?
- Drinking adequate fluids
- Forceful coughing, sneezing, or nose blowing
- Resting with the head elevated
- Reporting new fever promptly
Correct answer: Forceful coughing, sneezing, or nose blowing
Forceful coughing, sneezing, or nose blowing should be avoided. These actions raise pressure in the nasopharynx and can drive air or bacteria across the dural defect, increasing the risk of pneumocephalus and meningitis while a CSF leak persists.
- A head-injured patient's intracranial pressure rises sharply each time the nurse performs endotracheal suctioning. Which strategy best mitigates these transient ICP spikes?
- Suction continuously for at least 30 seconds
- Pre-oxygenate, limit suction passes, and keep suctioning brief
- Increase suction frequency to keep the airway clear
- Avoid pre-oxygenation to save time
Correct answer: Pre-oxygenate, limit suction passes, and keep suctioning brief
Pre-oxygenating, limiting suction passes, and keeping suctioning brief best mitigates the spikes. Prolonged or frequent suctioning provokes coughing and hypoxia that raise ICP, so brief, hyperoxygenated passes minimize the pressure surge in a TBI patient.
- A patient with a complete spinal cord injury above T6 is several weeks post-injury. The nurse teaches the patient and family that a sudden severe headache with facial flushing and a spike in blood pressure represents which emergency?
- Spinal shock recurrence
- Autonomic dysreflexia
- Neurogenic shock
- Diffuse axonal injury
Correct answer: Autonomic dysreflexia
This represents autonomic dysreflexia. In chronic high spinal cord injury, a noxious stimulus below the lesion can trigger an abrupt hypertensive crisis with pounding headache and flushing above the lesion, so patients and families must recognize it and respond immediately.
- A nurse assessing a comatose trauma patient applies a central painful stimulus and observes no eye opening, no verbal response, and rigid extension of all extremities. Which GCS total and clinical interpretation is correct?
- GCS 3; brainstem-level posturing of grave concern
- GCS 4; brainstem-level posturing of grave concern
- GCS 6; mild injury
- GCS 8; moderate injury
Correct answer: GCS 4; brainstem-level posturing of grave concern
The total is 4, reflecting brainstem-level posturing of grave concern. No eye opening scores 1, no verbal response scores 1, and extensor (decerebrate) posturing scores 2, totaling 4. This very low score with decerebrate posturing indicates severe, deep brain injury.
- A patient with a penetrating stab wound to the right side of the cervical cord is found to have right-sided leg weakness with loss of position sense and left-sided loss of pain and temperature. Which best explains the crossed sensory deficit?
- The spinothalamic tract fibers cross near their level of entry, so pain and temperature loss appears on the opposite side
- The dorsal columns cross immediately on entering the cord
- Motor fibers cross at the level of injury
- All sensory tracts remain uncrossed throughout the cord
Correct answer: The spinothalamic tract fibers cross near their level of entry, so pain and temperature loss appears on the opposite side
The spinothalamic tract fibers cross near their level of entry, so pain and temperature loss appears on the opposite side. In Brown-Sequard syndrome from a cord hemisection, the crossed spinothalamic pathway produces contralateral pain and temperature loss, while the same-side dorsal columns and corticospinal tract cause ipsilateral position-sense and motor deficits.
- A trauma patient with a traumatic hyphema is at risk for a secondary rise in intraocular pressure. Which assessment finding should prompt the nurse to notify the provider urgently?
- Mild eye redness that is improving
- New severe eye pain with worsening vision
- Slightly elevated head of bed
- A small amount of layered blood that is resolving
Correct answer: New severe eye pain with worsening vision
New severe eye pain with worsening vision should prompt urgent notification. These symptoms suggest a rebleed or a dangerous spike in intraocular pressure that can threaten the optic nerve and vision, requiring prompt evaluation in a patient recovering from a traumatic hyphema.
- Which mechanism allows air to continue entering the pleural space but prevents it from escaping in a tension pneumothorax?
- A one-way valve effect at the injury site
- A bidirectional opening that vents freely
- Active suction from the diaphragm
- Reabsorption of pleural fluid
Correct answer: A one-way valve effect at the injury site
A one-way valve effect at the injury site is the mechanism. Damaged lung or chest wall tissue lets air in during inspiration but seals during expiration, so each breath traps more air under rising pressure, progressively collapsing the lung and shifting the mediastinum.
- A ventilated chest-trauma patient suddenly shows a sharp rise in peak airway pressures, falling blood pressure, and difficulty bagging. Which complication should the nurse suspect first?
- Hypovolemia from dehydration
- Tension pneumothorax
- Atelectasis
- Bronchospasm from asthma
Correct answer: Tension pneumothorax
Tension pneumothorax should be suspected first. Positive-pressure ventilation can rapidly enlarge an air leak, and the combination of rising airway pressures, hypotension, and difficulty ventilating signals trapped air under tension requiring immediate decompression.
- Why does a tension pneumothorax cause jugular venous distension despite the patient being hypotensive?
- Increased circulating blood volume
- Left ventricular failure raising arterial pressure
- Rising intrathoracic pressure impeding venous return to the heart
- Renal fluid retention
Correct answer: Rising intrathoracic pressure impeding venous return to the heart
Rising intrathoracic pressure impeding venous return to the heart causes the neck veins to distend. Blood backs up in the systemic veins because it cannot return through the compressed great vessels, producing distension even as arterial pressure falls from low cardiac output.
- After successful needle decompression of a tension pneumothorax, what definitive treatment must follow?
- Oral antibiotics alone
- Pelvic binder application
- Cardiac catheterization
- Chest tube (tube thoracostomy) placement
Correct answer: Chest tube (tube thoracostomy) placement
Chest tube placement must follow. Needle decompression is only a temporizing measure that relieves the tension, so a chest tube is inserted to continuously evacuate air and allow the lung to reexpand and stay expanded.
- A trauma patient with a small simple pneumothorax is scheduled for air transport to a higher-level center. Why is the nurse concerned about altitude during the flight?
- Reduced atmospheric pressure can expand trapped pleural air and worsen the pneumothorax
- Cold air will freeze the lung
- Altitude increases blood viscosity
- Cabin pressure has no effect on pleural air
Correct answer: Reduced atmospheric pressure can expand trapped pleural air and worsen the pneumothorax
Reduced atmospheric pressure can expand trapped pleural air and worsen the pneumothorax. As ambient pressure drops with altitude, trapped gas expands, so a simple pneumothorax may enlarge or progress to tension during flight, often prompting chest tube placement before transport.
- A nurse explains that flail chest most often results from which mechanism of injury?
- Penetrating stab wound to a single rib
- High-energy blunt force such as a frontal motor vehicle collision
- Low-energy fall onto the buttocks
- Repetitive coughing
Correct answer: High-energy blunt force such as a frontal motor vehicle collision
High-energy blunt force such as a frontal motor vehicle collision most often causes flail chest. Substantial impact is needed to fracture multiple adjacent ribs in more than one place each, creating the free-floating segment that produces paradoxical movement.
- Which arterial blood gas pattern is most expected early in a patient struggling with a painful flail chest and inadequate ventilation?
- Metabolic alkalosis with hyperoxia
- Normal gases with high bicarbonate
- Respiratory acidosis with hypoxemia
- Respiratory alkalosis with high oxygen
Correct answer: Respiratory acidosis with hypoxemia
Respiratory acidosis with hypoxemia is most expected. Pain-limited shallow breathing and impaired ventilation from the flail segment cause carbon dioxide retention, lowering pH, while gas-exchange impairment from the underlying contusion drops oxygen levels.
- A patient with a flail chest receives a thoracic epidural for pain control. What is the primary respiratory benefit of this analgesia approach?
- It paralyzes the diaphragm to rest the lungs
- It dries pulmonary secretions
- It directly stabilizes the rib fractures
- It allows deeper breathing and effective coughing by controlling pain
Correct answer: It allows deeper breathing and effective coughing by controlling pain
It allows deeper breathing and effective coughing by controlling pain. Effective regional analgesia reduces splinting from rib-fracture pain so the patient can take fuller breaths and clear secretions, lowering the risk of atelectasis and pneumonia.
- Surgical rib fixation may be considered for a flail chest patient who has which of the following?
- Severely displaced fractures with failure to wean from the ventilator
- A single nondisplaced rib fracture
- A small simple pneumothorax
- Mild bruising with normal breathing
Correct answer: Severely displaced fractures with failure to wean from the ventilator
Severely displaced fractures with failure to wean from the ventilator may warrant surgical rib fixation. Operative stabilization can restore chest wall integrity and improve ventilation in selected patients who cannot be liberated from mechanical support, reducing ventilator days.
- A patient develops cardiac tamponade slowly from a small ongoing pericardial bleed. Compared with rapid traumatic tamponade, why might the pericardium tolerate a larger volume in this slow scenario?
- Slow bleeding clots instantly
- The pericardium gradually stretches to accommodate slowly accumulating fluid
- The heart shrinks to make room
- Venous return increases over time
Correct answer: The pericardium gradually stretches to accommodate slowly accumulating fluid
The pericardium gradually stretches to accommodate slowly accumulating fluid. Given time, the normally stiff sac can expand and hold a larger volume before pressure compromises filling, whereas a rapid traumatic bleed overwhelms the noncompliant sac with even a small volume.
- On a cardiac monitor, which finding is sometimes associated with a large pericardial effusion causing tamponade?
- Tall peaked T waves
- A widened QRS from bundle branch block
- Electrical alternans with beat-to-beat variation in QRS amplitude
- Delta waves
Correct answer: Electrical alternans with beat-to-beat variation in QRS amplitude
Electrical alternans with beat-to-beat variation in QRS amplitude can occur. The heart swings within a fluid-filled pericardium, altering the electrical axis from beat to beat, producing the alternating QRS amplitude that may accompany a significant tamponade-causing effusion.
- A patient with penetrating cardiac injury and tamponade is taken for emergency surgery. Which procedure provides definitive treatment of the cardiac wound?
- Pericardiocentesis alone
- Chest tube insertion only
- Diagnostic peritoneal lavage
- Open thoracotomy or sternotomy with pericardial decompression and cardiac repair
Correct answer: Open thoracotomy or sternotomy with pericardial decompression and cardiac repair
Open thoracotomy or sternotomy with pericardial decompression and cardiac repair is definitive. While pericardiocentesis can temporarily relieve pressure, a penetrating cardiac wound requires surgical exposure to evacuate the pericardium and directly repair the myocardial injury.
- Which intravenous intervention can temporarily support cardiac output in a tamponade patient while awaiting definitive drainage?
- Fluid administration to increase right-heart filling pressure
- Aggressive diuresis
- Withholding all fluids
- Rapid afterload reduction with vasodilators
Correct answer: Fluid administration to increase right-heart filling pressure
Fluid administration to increase right-heart filling pressure can temporarily support output. Raising the filling pressure helps the compressed ventricles fill against the elevated pericardial pressure, providing a short-term bridge until pericardiocentesis or surgery relieves the tamponade.
- A trauma patient with a stab wound to the left chest develops muffled heart sounds and a rising central venous pressure. The nurse recognizes the rising central venous pressure reflects what in tamponade?
- Decreased blood volume
- Impaired venous return as the compressed heart cannot accept blood
- Pulmonary fibrosis
- Improved cardiac filling
Correct answer: Impaired venous return as the compressed heart cannot accept blood
It reflects impaired venous return as the compressed heart cannot accept blood. Pericardial pressure prevents adequate diastolic filling, so blood backs up into the venous system, elevating central venous pressure even while forward cardiac output and arterial pressure fall.
- When assessing for Beck's triad, how should the nurse correctly interpret the blood pressure component?
- Hypertension above 180 systolic
- A widening pulse pressure
- A narrowing pulse pressure with hypotension
- No change in blood pressure
Correct answer: A narrowing pulse pressure with hypotension
A narrowing pulse pressure with hypotension is the correct interpretation. In tamponade, the falling stroke volume lowers systolic pressure while compensatory vasoconstriction raises diastolic pressure, narrowing the gap between them as part of the hypotension seen in Beck's triad.
- A nurse is teaching a class on tamponade. Which statement about Beck's triad is accurate?
- It reliably appears fully in every tamponade patient
- It includes tracheal deviation as one component
- It is specific for tension pneumothorax
- It consists of jugular venous distension, hypotension, and muffled heart sounds but may be incomplete
Correct answer: It consists of jugular venous distension, hypotension, and muffled heart sounds but may be incomplete
Beck's triad consists of jugular venous distension, hypotension, and muffled heart sounds but may be incomplete. All three components are not always present, especially in noisy resuscitation settings or with coexisting hypovolemia, so absence of the full triad does not rule out tamponade.
- Which environmental factor in a busy trauma bay can make the muffled heart sounds component of Beck's triad difficult to detect?
- High ambient noise from monitors and activity
- Bright lighting
- Cold room temperature
- Use of a cardiac monitor
Correct answer: High ambient noise from monitors and activity
High ambient noise from monitors and activity can obscure muffled heart sounds. The chaotic acoustic environment of a trauma resuscitation makes subtle auscultation findings hard to appreciate, so the nurse relies on the other components and imaging such as a FAST exam.
- A massive hemothorax can cause shock through two combined mechanisms. Which pair best describes them?
- Air trapping plus pericardial compression
- Blood loss causing hypovolemia plus lung compression impairing ventilation
- Spinal cord injury plus vasodilation
- Coronary spasm plus bradycardia
Correct answer: Blood loss causing hypovolemia plus lung compression impairing ventilation
Blood loss causing hypovolemia plus lung compression impairing ventilation best describes it. Large-volume bleeding into the pleural space depletes circulating volume while the accumulated blood compresses the lung, so the patient suffers both hemorrhagic shock and respiratory compromise.
- Before inserting a chest tube for a suspected massive hemothorax, which preparation is a priority for the trauma nurse?
- Restricting intravenous access
- Placing the patient in Trendelenburg only
- Establishing large-bore intravenous access and preparing blood products
- Administering a diuretic
Correct answer: Establishing large-bore intravenous access and preparing blood products
Establishing large-bore intravenous access and preparing blood products is a priority. Draining a massive hemothorax can release a large blood volume and unmask hypovolemia, so the nurse readies resuscitation with fluids and blood to support the patient during decompression.
- A chest tube draining a hemothorax shows output that slows then becomes minimal, yet the patient remains hypotensive with a rising heart rate. What should the nurse consider?
- The bleeding has fully stopped and the patient is stable
- The patient needs the tube clamped permanently
- Oxygen should be discontinued
- Clot may be obstructing the tube while bleeding continues internally
Correct answer: Clot may be obstructing the tube while bleeding continues internally
Clot may be obstructing the tube while bleeding continues internally. A tube that stops draining despite ongoing signs of hemorrhage can be occluded, allowing retained blood to accumulate, so the nurse assesses tube patency and watches for the need for surgical intervention.
- A patient with a hemothorax is placed on a chest drainage system with suction. What is the purpose of the suction-control regulation in this system?
- To control the amount of negative pressure applied to help evacuate blood and air
- To prevent any air from leaving the chest
- To warm the drained blood
- To measure cardiac output
Correct answer: To control the amount of negative pressure applied to help evacuate blood and air
It controls the amount of negative pressure applied to help evacuate blood and air. Regulated suction promotes drainage and lung reexpansion in a hemothorax without applying excessive negative pressure, supporting evacuation of the pleural collection.
- A blunt chest trauma patient with a pulmonary contusion is most likely to show which characteristic timing of respiratory decline?
- Immediate and then complete recovery within minutes
- Gradual worsening over the first day or two after injury
- No change for weeks then sudden onset
- Improvement only with fluid loading
Correct answer: Gradual worsening over the first day or two after injury
Gradual worsening over the first day or two after injury is characteristic. The contused lung accumulates edema and inflammation over 24 to 48 hours, so a patient who initially appears stable can progressively deteriorate, requiring vigilant serial respiratory monitoring.
- Which positioning strategy can help optimize oxygenation in a patient with a unilateral pulmonary contusion when not contraindicated?
- Strict supine flat positioning at all times
- Continuous prone positioning regardless of injuries
- Positioning the good lung down to improve its perfusion and ventilation
- Trendelenburg position
Correct answer: Positioning the good lung down to improve its perfusion and ventilation
Positioning the good lung down can improve its perfusion and ventilation. Gravity directs more blood flow to the dependent, healthier lung, better matching ventilation and perfusion and improving oxygenation, when other injuries do not prohibit this position.
- A patient with a pulmonary contusion is at increased risk for which infectious complication during recovery?
- Urinary tract infection
- Cellulitis of the leg
- Meningitis
- Pneumonia in the injured lung tissue
Correct answer: Pneumonia in the injured lung tissue
Pneumonia in the injured lung tissue is an increased risk. Damaged, fluid-filled lung parenchyma provides a setting for infection, and impaired clearance of secretions further raises the chance of pneumonia, making pulmonary hygiene an important part of care.
- A nurse caring for a pulmonary contusion patient titrates oxygen therapy with a goal of doing what?
- Maintaining adequate oxygen saturation while avoiding fluid overload
- Keeping the patient hypoxic to stimulate breathing
- Maximizing intravenous fluids to flush the lungs
- Avoiding all supplemental oxygen
Correct answer: Maintaining adequate oxygen saturation while avoiding fluid overload
Maintaining adequate oxygen saturation while avoiding fluid overload is the goal. The nurse supports oxygenation through supplemental oxygen and possibly ventilation, while carefully managing fluids because excess volume can worsen edema in the vulnerable contused lung.
- A patient with a traumatic aortic injury shows a blood pressure that is higher in the upper extremities than the lower extremities. This differential is explained by what?
- Normal physiologic variation
- Partial obstruction of aortic flow at the injury site reducing distal perfusion
- Bilateral leg fractures
- Improved cardiac output
Correct answer: Partial obstruction of aortic flow at the injury site reducing distal perfusion
Partial obstruction of aortic flow at the injury site reducing distal perfusion explains the differential. A contained aortic injury or associated narrowing can limit blood flow beyond it, producing higher pressures proximally in the arms than distally in the legs.
- Which initial chest radiograph finding, beyond a widened mediastinum, should raise suspicion for traumatic aortic injury?
- A normal cardiac silhouette
- Clear lung fields with no abnormality
- Loss of the aortic knob contour with left apical capping
- A small simple rib fracture only
Correct answer: Loss of the aortic knob contour with left apical capping
Loss of the aortic knob contour with left apical capping should raise suspicion. These radiographic clues, along with a widened mediastinum, suggest mediastinal blood from an aortic injury and prompt confirmatory CT angiography in a patient with a deceleration mechanism.
- A patient with a contained traumatic aortic injury becomes acutely hypotensive with severe chest pain and loss of distal pulses. Which event should the nurse suspect?
- Resolution of the injury
- Improved perfusion
- A simple muscle strain
- Free rupture of the aorta
Correct answer: Free rupture of the aorta
Free rupture of the aorta should be suspected. Sudden hypotension, severe pain, and lost pulses in a patient with a known aortic injury indicate the contained tear has given way to free hemorrhage, an immediately life-threatening event requiring emergency surgery.
- A patient with a sucking chest wound has an open pneumothorax. Which underlying pressure change prevents effective lung expansion on the affected side?
- Equalization of intrapleural pressure with atmospheric pressure through the defect
- An increase in lung surfactant
- A drop in atmospheric pressure
- Improved negative pleural pressure
Correct answer: Equalization of intrapleural pressure with atmospheric pressure through the defect
Equalization of intrapleural pressure with atmospheric pressure through the defect prevents lung expansion. Normally the pleural space holds negative pressure that keeps the lung inflated, but the open wound lets outside air in, abolishing that gradient so the lung cannot reexpand.
- A commercial vented chest seal is applied to an open pneumothorax. What advantage does the vented design provide over a simple square of plastic?
- It permanently seals all air movement
- It allows air to escape on exhalation while blocking entry, reducing tension risk
- It absorbs all bleeding
- It warms the chest wall
Correct answer: It allows air to escape on exhalation while blocking entry, reducing tension risk
It allows air to escape on exhalation while blocking entry, reducing tension risk. The one-way vent functions like a flutter valve, releasing accumulating pleural air during expiration so a tension pneumothorax is less likely to develop under the dressing.
- A trauma patient with a large open chest wound is in respiratory distress after a fully occlusive dressing was applied at the scene. The nurse notes worsening distress and hypotension. What is the priority assessment?
- Measure urine output
- Assess for a leg fracture
- Check for signs of a developing tension pneumothorax under the sealed dressing
- Obtain a glucose level
Correct answer: Check for signs of a developing tension pneumothorax under the sealed dressing
Checking for signs of a developing tension pneumothorax under the sealed dressing is the priority. A four-sided seal can trap air, and new distress with hypotension suggests tension physiology, so the nurse evaluates and relieves the seal to let the trapped air escape.
- During a FAST exam, which view is used specifically to evaluate the pericardial space for blood?
- The pelvic view
- The right upper quadrant view
- The left flank view
- The subxiphoid or cardiac view
Correct answer: The subxiphoid or cardiac view
The subxiphoid or cardiac view is used to evaluate the pericardial space. This window allows the examiner to look for fluid around the heart suggesting tamponade, making it a key part of the focused assessment in a patient with chest trauma.
- An extended FAST (eFAST) exam adds assessment of which additional structure compared with the standard FAST?
- The lungs and pleural spaces for pneumothorax or hemothorax
- The brain
- The kidneys for stones
- The thyroid
Correct answer: The lungs and pleural spaces for pneumothorax or hemothorax
The eFAST adds assessment of the lungs and pleural spaces for pneumothorax or hemothorax. By evaluating the thoracic cavity in addition to the standard abdominal and pericardial windows, the extended exam can detect chest injuries quickly at the bedside.
- Which patient factor can reduce the reliability of a FAST exam in detecting intra-abdominal free fluid?
- Slim body habitus
- Significant obesity or substantial bowel gas
- Calm cooperative patient
- Empty bladder
Correct answer: Significant obesity or substantial bowel gas
Significant obesity or substantial bowel gas can reduce reliability. Excess tissue and gas scatter and block ultrasound waves, limiting image quality and making free fluid harder to identify, so a limited or negative FAST in these patients warrants further evaluation.
- A hemodynamically stable blunt abdominal trauma patient has a positive FAST exam. What is the most appropriate next step?
- Immediate laparotomy regardless of stability
- Discharge home with instructions
- CT imaging to characterize and grade the injury
- No further imaging
Correct answer: CT imaging to characterize and grade the injury
CT imaging to characterize and grade the injury is most appropriate. In a stable patient, a positive FAST indicates free fluid but does not define the source or severity, so CT provides the detail needed to decide between operative and nonoperative management.
- A patient with blunt abdominal trauma reports left shoulder pain that intensifies when the foot of the bed is raised. The nurse recognizes this maneuver may accentuate Kehr's sign by doing what?
- Decreasing diaphragmatic contact with blood
- Improving venous return
- Relieving phrenic nerve irritation
- Allowing intra-abdominal blood to pool against the diaphragm
Correct answer: Allowing intra-abdominal blood to pool against the diaphragm
Raising the foot of the bed allows intra-abdominal blood to pool against the diaphragm. The pooled blood increases irritation of the diaphragm and phrenic nerve, accentuating the referred left shoulder pain that signals possible splenic injury.
- Kehr's sign is considered a useful clinical clue in trauma because referred shoulder pain may appear when which finding is otherwise difficult to detect?
- Early intra-abdominal bleeding before overt shock
- A femur fracture
- A scalp laceration
- An ankle sprain
Correct answer: Early intra-abdominal bleeding before overt shock
Kehr's sign may appear with early intra-abdominal bleeding before overt shock. Referred shoulder pain from diaphragmatic irritation can signal a bleeding spleen even when vital signs remain compensated, giving the nurse an early warning to investigate further.
- Right-sided Kehr's sign, though less common than left-sided, would most suggest irritation of the diaphragm from which source?
- A bladder rupture
- A bleeding liver injury
- A pelvic fracture
- A rib fracture only
Correct answer: A bleeding liver injury
Right-sided Kehr's sign would most suggest a bleeding liver injury. Blood from a hepatic injury can irritate the right hemidiaphragm, referring pain to the right shoulder along the phrenic nerve, paralleling the more familiar left-sided sign from splenic injury.
- A nurse monitoring a patient with a nonoperatively managed splenic injury knows serial measurement of which laboratory value best tracks ongoing blood loss?
- Serum sodium
- Serum calcium
- Hemoglobin and hematocrit
- White blood cell count alone
Correct answer: Hemoglobin and hematocrit
Hemoglobin and hematocrit best track ongoing blood loss. Trending these values over time helps detect continued bleeding from the injured spleen, so a falling hemoglobin alerts the nurse to possible failure of nonoperative management requiring reassessment.
- A patient who underwent splenectomy is being prepared for discharge. Which teaching point is most important to prevent a serious long-term complication?
- Avoid all physical activity permanently
- Restrict fluids daily
- Avoid all dietary protein
- Obtain recommended vaccinations against encapsulated organisms
Correct answer: Obtain recommended vaccinations against encapsulated organisms
Obtaining recommended vaccinations against encapsulated organisms is most important. Without the spleen, the patient is more vulnerable to infection from encapsulated bacteria, so immunization against organisms such as pneumococcus, meningococcus, and Haemophilus influenzae is emphasized.
- Splenic injuries are graded by severity. What does a higher injury grade generally indicate about management likelihood?
- Higher grades carry a greater chance of needing intervention or surgery
- Higher grades always heal without monitoring
- Grade has no relationship to management
- Higher grades require no blood typing
Correct answer: Higher grades carry a greater chance of needing intervention or surgery
Higher grades carry a greater chance of needing intervention or surgery. As the grade rises with deeper lacerations and active bleeding, nonoperative management is more likely to fail, so higher-grade injuries are watched closely and more often require angioembolization or operation.
- A patient with a splenic injury managed nonoperatively is taught activity restrictions. What is the rationale for limiting strenuous activity during recovery?
- To improve appetite
- To prevent delayed rupture or rebleeding of the healing spleen
- To strengthen the abdominal muscles
- To lower blood pressure
Correct answer: To prevent delayed rupture or rebleeding of the healing spleen
The rationale is to prevent delayed rupture or rebleeding of the healing spleen. Strenuous activity can stress the injured organ before it has healed, risking new hemorrhage, so activity is restricted during the recovery period to allow the spleen to stabilize.
- A patient with a liver laceration develops worsening right upper quadrant pain, jaundice, and signs of biliary obstruction days after injury. Which complication should the nurse suspect?
- A simple skin bruise
- A urinary tract infection
- A bile leak or biloma from the injured liver
- A fractured rib only
Correct answer: A bile leak or biloma from the injured liver
A bile leak or biloma from the injured liver should be suspected. Hepatic injuries can disrupt bile ducts, allowing bile to collect or obstruct flow, producing right upper quadrant pain and jaundice that may require drainage or endoscopic intervention.
- Why is the liver a particularly high-risk organ for life-threatening hemorrhage in blunt abdominal trauma?
- It has minimal blood supply
- It is small and well protected
- It contains no major vessels
- It is large and highly vascular with a dual blood supply
Correct answer: It is large and highly vascular with a dual blood supply
It is large and highly vascular with a dual blood supply. Receiving blood from both the hepatic artery and portal vein, the sizable liver can bleed massively when lacerated, making hepatic injury a leading cause of serious intra-abdominal hemorrhage.
- A stable patient with a liver laceration is managed nonoperatively. Which assessment finding would most strongly indicate that this approach is failing?
- Persistent tachycardia and hypotension with a falling hemoglobin
- Stable vital signs and steady hemoglobin
- Resolving abdominal tenderness
- Normal lactate level
Correct answer: Persistent tachycardia and hypotension with a falling hemoglobin
Persistent tachycardia and hypotension with a falling hemoglobin would most strongly indicate failure. These signs point to continued hemorrhage from the liver injury that observation alone is not controlling, prompting escalation to angioembolization or surgery.
- Angioembolization may be used for a liver injury with active arterial bleeding. What is the goal of this procedure?
- To remove the entire liver
- To selectively occlude the bleeding artery and control hemorrhage
- To drain the bladder
- To stabilize a pelvic fracture
Correct answer: To selectively occlude the bleeding artery and control hemorrhage
The goal is to selectively occlude the bleeding artery and control hemorrhage. Interventional radiology can catheterize and embolize the specific vessel supplying the bleeding liver injury, stopping arterial hemorrhage while preserving as much liver as possible.
- A patient with a delayed-presentation diaphragmatic rupture develops bowel obstruction symptoms weeks after the original trauma. Which process explains this late presentation?
- Spontaneous diaphragm healing
- Resolution of the injury
- Progressive herniation and possible strangulation of abdominal contents through the defect
- New rib fracture
Correct answer: Progressive herniation and possible strangulation of abdominal contents through the defect
Progressive herniation and possible strangulation of abdominal contents through the defect explains it. A missed diaphragmatic tear can allow abdominal organs to gradually herniate into the chest over time, eventually causing obstruction or strangulation that prompts late surgical repair.
- When a nasogastric tube is placed in a patient with a left diaphragmatic rupture, which radiographic finding would confirm herniation of the stomach into the thorax?
- The tube tip in the right lower quadrant
- The tube in the bladder
- The tube outside the body
- The tube tip seen coiled in the chest cavity
Correct answer: The tube tip seen coiled in the chest cavity
The tube tip seen coiled in the chest cavity would confirm herniation. If the stomach has moved into the thorax through the diaphragmatic defect, the nasogastric tube follows it upward, and seeing the tube within the chest on imaging confirms the diagnosis.
- Why can a diaphragmatic rupture be missed on the initial chest radiograph of a supine, positive-pressure ventilated trauma patient?
- Positive pressure can hold abdominal contents below the diaphragm, masking herniation
- The diaphragm is not visible on any imaging
- Ventilation cures the rupture
- The injury never appears on imaging
Correct answer: Positive pressure can hold abdominal contents below the diaphragm, masking herniation
Positive pressure can hold abdominal contents below the diaphragm, masking herniation. Mechanical ventilation pushes organs downward, so a small tear may not show obvious herniation initially, which is why the injury is sometimes recognized only later when pressure changes.
- Cullen's sign, when present after blunt abdominal trauma, should prompt the nurse to monitor closely for what?
- A resolving minor bruise needing no action
- Progression of intra-abdominal or retroperitoneal hemorrhage and hemodynamic instability
- An allergic reaction
- Dehydration only
Correct answer: Progression of intra-abdominal or retroperitoneal hemorrhage and hemodynamic instability
It should prompt monitoring for progression of intra-abdominal or retroperitoneal hemorrhage and hemodynamic instability. Periumbilical ecchymosis reflects internal bleeding tracking to the surface, so the nurse watches vital signs and hemoglobin for evidence of ongoing or worsening blood loss.
- A trauma nurse documents periumbilical ecchymosis. Which characteristic of Cullen's sign is important to communicate to the team?
- It appears instantly at the moment of injury
- It only occurs with head injury
- It is typically a delayed finding, so its absence early does not exclude bleeding
- It is specific for a fractured femur
Correct answer: It is typically a delayed finding, so its absence early does not exclude bleeding
It is typically a delayed finding, so its absence early does not exclude bleeding. Because blood takes time to track through tissue planes to the periumbilical skin, Cullen's sign may not be evident on initial assessment even when significant hemorrhage is present.
- Grey Turner's sign indicates bleeding in which anatomic compartment?
- The pleural space
- The pericardial sac
- The cranial vault
- The retroperitoneum
Correct answer: The retroperitoneum
Grey Turner's sign indicates bleeding in the retroperitoneum. Flank ecchymosis develops as retroperitoneal blood tracks to the subcutaneous tissue of the flanks, signaling hemorrhage from sources such as the kidneys, pancreas, or pelvic structures.
- A patient with a pelvic fracture later develops Grey Turner's sign. The nurse interprets this as supporting which concern?
- Retroperitoneal hemorrhage associated with the pelvic injury
- Resolution of pelvic bleeding
- A new lung contusion
- A scalp laceration
Correct answer: Retroperitoneal hemorrhage associated with the pelvic injury
The nurse interprets it as supporting retroperitoneal hemorrhage associated with the pelvic injury. Pelvic fractures commonly bleed into the retroperitoneal space, and flank ecchymosis reflects that blood reaching the skin, reinforcing concern for significant ongoing pelvic hemorrhage.
- Why might both Cullen's and Grey Turner's signs be absent in the first hours after a significant retroperitoneal bleed?
- Retroperitoneal bleeds never cause skin discoloration
- Blood requires time to track through tissue planes to reach the skin surface
- The signs only occur with arterial spray
- The patient must be standing
Correct answer: Blood requires time to track through tissue planes to reach the skin surface
Blood requires time to track through tissue planes to reach the skin surface. Because these ecchymoses depend on slow migration of deep blood to subcutaneous tissue, they are delayed findings, so their early absence does not rule out serious retroperitoneal hemorrhage.
- An unstable pelvic fracture with anterior-posterior compression typically increases pelvic volume in what way that worsens bleeding?
- It decreases pelvic volume and stops bleeding
- It has no effect on volume
- It opens the pelvic ring like a book, enlarging the space for blood to accumulate
- It seals all pelvic vessels
Correct answer: It opens the pelvic ring like a book, enlarging the space for blood to accumulate
It opens the pelvic ring like a book, enlarging the space for blood to accumulate. This open-book pattern increases the pelvic volume, reducing the natural tamponade effect, so more blood can pool from torn vessels, which is why circumferential binding to close the ring helps control hemorrhage.
- A nurse checks a previously applied pelvic binder and finds it positioned over the iliac crests. What action is appropriate?
- Leave it as is because position does not matter
- Remove the binder entirely
- Tighten it without moving it
- Reposition the binder lower over the greater trochanters for effective compression
Correct answer: Reposition the binder lower over the greater trochanters for effective compression
Repositioning the binder lower over the greater trochanters for effective compression is appropriate. A binder placed too high over the iliac crests does not effectively close the pelvic ring, so correcting its position to the level of the trochanters restores proper hemorrhage-controlling compression.
- A patient with a pelvic fracture has a binder applied for an extended period during prolonged resuscitation. Which complication of prolonged binder pressure should the nurse monitor for?
- Skin breakdown or pressure injury beneath the binder
- Improved circulation to the skin
- Spontaneous fracture healing
- Increased urine output
Correct answer: Skin breakdown or pressure injury beneath the binder
Skin breakdown or pressure injury beneath the binder should be monitored for. Sustained compression over bony prominences can impair skin perfusion, so the nurse periodically assesses the skin under and around the binder while balancing the need for ongoing hemorrhage control.
- A trauma patient with a pelvic fracture and binder in place needs transfer to the operating room. The binder helps control which type of bleeding most effectively?
- Major arterial bleeding only
- Venous and bony bleeding by reducing pelvic volume
- Intracranial bleeding
- Pulmonary bleeding
Correct answer: Venous and bony bleeding by reducing pelvic volume
The binder helps control venous and bony bleeding by reducing pelvic volume. Compressing the pelvic ring tamponades the venous plexus and fracture surfaces, though persistent arterial bleeding may still require angioembolization, so the binder is a first step rather than a complete solution.
- A patient with a pelvic fracture has a scrotal hematoma and high-riding prostate on examination. The nurse recognizes these findings as suggestive of what?
- A liver laceration
- A diaphragmatic rupture
- A posterior urethral injury
- A splenic injury
Correct answer: A posterior urethral injury
These findings are suggestive of a posterior urethral injury. Pelvic fractures can disrupt the urethra, and a scrotal hematoma with a high-riding prostate signals this injury, which is why urethral imaging is performed before attempting urinary catheterization.
- A patient with multiple posterior rib fractures from a fall is reluctant to take deep breaths. Which short-term complication is the nurse most focused on preventing through pulmonary hygiene?
- Renal failure
- Bowel obstruction
- Deep vein thrombosis of the arm
- Atelectasis from hypoventilation
Correct answer: Atelectasis from hypoventilation
Atelectasis from hypoventilation is the focus. Pain-limited shallow breathing causes alveoli to collapse, so the nurse encourages deep breathing, incentive spirometry, and pain control to keep the lungs expanded and prevent the progression to pneumonia.
- A patient with a sternal fracture is admitted for monitoring. Beyond cardiac monitoring, which assessment is appropriate given the location of the injury?
- Assessing for underlying lung and great-vessel injury
- Checking only the lower extremities
- Evaluating the spleen exclusively
- Monitoring intracranial pressure
Correct answer: Assessing for underlying lung and great-vessel injury
Assessing for underlying lung and great-vessel injury is appropriate. The high-energy force that fractures the sternum can also injure the heart, lungs, or great vessels behind it, so the nurse evaluates for these associated thoracic injuries in addition to monitoring the heart.
- A patient with blunt cardiac injury after sternal trauma is being assessed. Which diagnostic test helps evaluate for myocardial damage in this setting?
- A complete blood count alone
- An electrocardiogram and cardiac biomarker testing
- A urine culture
- An abdominal radiograph
Correct answer: An electrocardiogram and cardiac biomarker testing
An electrocardiogram and cardiac biomarker testing help evaluate myocardial damage. Together they can reveal dysrhythmias and evidence of cardiac injury after blunt chest trauma, guiding the level of monitoring needed for a patient with a suspected cardiac contusion.
- A blunt trauma patient with left lower rib fractures is monitored for splenic injury. Which new finding would most concern the nurse for splenic bleeding?
- Decreasing heart rate with rising blood pressure
- Resolution of all abdominal tenderness
- Increasing left upper quadrant pain with tachycardia and falling blood pressure
- Normalizing hemoglobin
Correct answer: Increasing left upper quadrant pain with tachycardia and falling blood pressure
Increasing left upper quadrant pain with tachycardia and falling blood pressure would most concern the nurse. These signs suggest the spleen beneath the fractured ribs is bleeding, indicating possible intra-abdominal hemorrhage that requires prompt reassessment and intervention.
- A patient with lower right rib fractures and right upper quadrant pain is observed for liver injury. The nurse understands the liver is at risk in this location because it lies where?
- In the left lower quadrant
- Within the pelvis
- In the posterior mediastinum
- Beneath the lower right ribs and diaphragm
Correct answer: Beneath the lower right ribs and diaphragm
The liver lies beneath the lower right ribs and diaphragm, placing it at risk. Fractures of the lower right ribs can lacerate the underlying liver, so right upper quadrant pain in this setting prompts evaluation for hepatic injury and intra-abdominal bleeding.
- A patient with blunt abdominal trauma develops fever, abdominal distension, and worsening tenderness two days after injury. Which missed injury most likely explains this delayed deterioration?
- A hollow-viscus perforation causing peritonitis
- A simple skin abrasion
- A resolved contusion
- A scalp wound
Correct answer: A hollow-viscus perforation causing peritonitis
A hollow-viscus perforation causing peritonitis most likely explains the deterioration. Bowel injuries can be subtle initially, and leaked intestinal contents cause delayed peritoneal inflammation with fever and worsening tenderness, underscoring the value of serial abdominal assessment.
- A patient with a pelvic fracture remains hypotensive after binder application and fluid resuscitation, and the FAST is negative for intraperitoneal fluid. Where is the bleeding most likely occurring?
- Into the cranium
- Into the retroperitoneal pelvic space, which the FAST does not assess well
- Into the pleural space only
- There is no bleeding
Correct answer: Into the retroperitoneal pelvic space, which the FAST does not assess well
Bleeding is most likely occurring into the retroperitoneal pelvic space, which the FAST does not assess well. A negative FAST with ongoing instability in a pelvic-fracture patient points to retroperitoneal hemorrhage from the pelvic injury, often requiring angioembolization or pelvic packing.
- A patient with a penetrating flank stab wound has signs of peritonitis and hemodynamic instability. Which intervention is the priority?
- Discharge with wound care instructions
- Outpatient ultrasound in one week
- Urgent surgical exploration to control bleeding and repair injuries
- Bedside pericardiocentesis
Correct answer: Urgent surgical exploration to control bleeding and repair injuries
Urgent surgical exploration to control bleeding and repair injuries is the priority. An unstable patient with peritonitis from a penetrating flank wound likely has significant organ injury and hemorrhage that requires operative intervention rather than continued observation.
- A patient with a flail chest segment is being assessed during inspiration. Which observation confirms paradoxical chest wall movement?
- The whole chest expanding uniformly
- The chest remaining completely still
- Symmetric outward movement on both sides
- The injured segment sinking inward while the rest of the chest rises
Correct answer: The injured segment sinking inward while the rest of the chest rises
The injured segment sinking inward while the rest of the chest rises confirms paradoxical movement. During inspiration the negative pressure pulls the unsupported flail segment inward, opposite to the normal outward expansion of the surrounding chest wall.
- A trauma patient with chest trauma is in obstructive shock. Auscultation reveals equal breath sounds bilaterally, the chest is resonant, and neck veins are distended. Which diagnosis is most consistent?
- Cardiac tamponade
- Tension pneumothorax
- Massive hemothorax
- Simple rib fracture
Correct answer: Cardiac tamponade
Cardiac tamponade is most consistent. With distended neck veins and obstructive shock but normal equal breath sounds and a resonant chest, the lungs are not the problem, pointing instead to pericardial fluid compressing the heart rather than a chest air or blood collection.
- A trauma patient with chest trauma has obstructive shock with absent breath sounds and hyperresonance on the left and tracheal deviation to the right. Which diagnosis is most consistent?
- Cardiac tamponade
- Tension pneumothorax on the left
- Pulmonary contusion
- Splenic injury
Correct answer: Tension pneumothorax on the left
Tension pneumothorax on the left is most consistent. Absent breath sounds with hyperresonance on the affected side plus tracheal deviation toward the opposite side indicate air under pressure collapsing the left lung and shifting the mediastinum, requiring immediate decompression.
- A patient with a chest tube draining a pneumothorax shows tidaling that suddenly stops while the lung remains partially collapsed. What does the loss of tidaling most likely indicate?
- Full lung reexpansion
- Normal functioning of the system
- Tube obstruction or kinking
- Resolution of the injury
Correct answer: Tube obstruction or kinking
Loss of tidaling most likely indicates tube obstruction or kinking. Tidaling reflects pressure changes transmitted through a patent tube, so its sudden absence with an incompletely reexpanded lung suggests the tube is blocked, prompting the nurse to assess and troubleshoot the system.
- A patient with a confirmed liver injury managed nonoperatively suddenly develops abdominal distension, hypotension, and a sharp drop in hemoglobin. What is the most appropriate interpretation?
- The injury has healed
- An expected normal recovery
- A need to increase oral intake only
- Ongoing or recurrent hepatic hemorrhage requiring urgent intervention
Correct answer: Ongoing or recurrent hepatic hemorrhage requiring urgent intervention
Ongoing or recurrent hepatic hemorrhage requiring urgent intervention is the appropriate interpretation. Sudden distension with hypotension and a falling hemoglobin signals that the liver injury is bleeding despite observation, prompting escalation to embolization or surgery.
- A patient with a stab wound near the lower anterior chest is at risk for combined thoracic and abdominal injury because of which anatomic feature?
- The diaphragm rises into the lower chest, so injuries here can involve both cavities
- The abdomen and chest are completely separate at this level
- There are no organs in this region
- The pelvis extends into the chest
Correct answer: The diaphragm rises into the lower chest, so injuries here can involve both cavities
The diaphragm rises into the lower chest, so injuries here can involve both cavities. Because the dome of the diaphragm sits high during expiration, a wound to the lower chest can penetrate both the thorax and the abdomen, requiring evaluation for injuries above and below the diaphragm.
- A trauma patient with a massive hemothorax is being autotransfused with shed pleural blood. Which characteristic of this blood requires the nurse's attention during reinfusion?
- It is always fully clotted and unusable
- It may be partially defibrinated and require appropriate filtration during collection and reinfusion
- It contains no red cells
- It must be heated to boiling first
Correct answer: It may be partially defibrinated and require appropriate filtration during collection and reinfusion
It may be partially defibrinated and require appropriate filtration during collection and reinfusion. Shed pleural blood is processed and filtered to remove clots and debris before being returned to the patient, so the nurse follows the autotransfusion system protocol carefully.
- A patient with a pulmonary contusion is mechanically ventilated and develops refractory hypoxemia with bilateral infiltrates and worsening compliance. The nurse recognizes the contusion may have progressed to what?
- A resolved injury
- A simple pneumothorax
- Acute respiratory distress syndrome
- Compartment syndrome
Correct answer: Acute respiratory distress syndrome
The contusion may have progressed to acute respiratory distress syndrome. Severe lung injury can evolve into diffuse alveolar damage with refractory hypoxemia, bilateral infiltrates, and decreased compliance, requiring lung-protective ventilation strategies.
- A nurse differentiates cardiac tamponade from tension pneumothorax in a hypotensive patient with distended neck veins. Which single finding best favors tamponade?
- Tracheal deviation away from the affected side
- Hyperresonance to percussion on one side
- Absent breath sounds on one side
- Muffled heart sounds with equal breath sounds bilaterally
Correct answer: Muffled heart sounds with equal breath sounds bilaterally
Muffled heart sounds with equal breath sounds bilaterally best favors tamponade. Both conditions cause obstructive shock with distended neck veins, but normal symmetric breath sounds and muffled heart tones point to pericardial fluid rather than air trapped in the pleural space.
- A trauma patient with a pelvic fracture is hypotensive, and the team plans preperitoneal pelvic packing. What is the purpose of this surgical technique?
- To pack the pelvis with surgical material to tamponade venous bleeding
- To remove the pelvic bones
- To repair the bladder only
- To stabilize the femur
Correct answer: To pack the pelvis with surgical material to tamponade venous bleeding
The purpose is to pack the pelvis with surgical material to tamponade venous bleeding. Preperitoneal packing applies direct pressure within the pelvic space to control venous and bony hemorrhage, often used alongside binding and angioembolization in unstable pelvic fractures.
- A patient with blunt abdominal trauma has a seatbelt sign across the lower abdomen. The nurse recognizes this finding raises concern for what?
- No significant injury
- Underlying intra-abdominal injury such as bowel or mesenteric trauma
- An isolated skin condition
- A pulmonary embolism
Correct answer: Underlying intra-abdominal injury such as bowel or mesenteric trauma
The seatbelt sign raises concern for underlying intra-abdominal injury such as bowel or mesenteric trauma. Bruising in the seatbelt distribution reflects transmitted force to the abdomen, so the nurse anticipates evaluation for hollow-viscus and mesenteric injuries that may not be immediately apparent.
- A patient sustains a deceleration injury and has a widened mediastinum. While awaiting CT angiography, the nurse limits which factor to reduce the risk of progression of a possible aortic injury?
- Oxygen delivery
- Intravenous access
- Sudden surges in blood pressure and heart rate
- Cardiac monitoring
Correct answer: Sudden surges in blood pressure and heart rate
The nurse limits sudden surges in blood pressure and heart rate. Spikes in pressure and the force of contraction increase shear stress on a potentially injured aorta, so controlling these factors helps prevent progression of a contained injury to rupture before imaging and treatment.
- A patient has a chest tube placed for traumatic hemothorax, and the drainage system tips over. What is the nurse's priority concern?
- The system color
- The label on the device
- The room temperature
- Maintaining the water seal to prevent air from entering the pleural space
Correct answer: Maintaining the water seal to prevent air from entering the pleural space
Maintaining the water seal to prevent air from entering the pleural space is the priority. The water seal acts as a one-way valve, and if it is disrupted, air could enter the chest, so the nurse restores the system upright and ensures the seal remains intact.
- A trauma patient with multiple rib fractures develops increasing oxygen requirements and a new patchy infiltrate beneath the fractured ribs over the first day. Which evolving injury best explains this?
- A developing pulmonary contusion
- A resolving bruise
- A pelvic fracture
- A urethral injury
Correct answer: A developing pulmonary contusion
A developing pulmonary contusion best explains this. The lung beneath the fractured ribs is bruised by the same force, and the contusion progresses over the first day with worsening oxygenation and an infiltrate, so the nurse anticipates closer respiratory monitoring.
- A patient with an open chest wound has a three-sided occlusive dressing applied. The nurse anticipates that the next definitive step in management will be what?
- Removal of the dressing and leaving the wound exposed
- Chest tube placement and surgical closure of the wound
- Pelvic binder application
- Discharge home
Correct answer: Chest tube placement and surgical closure of the wound
Chest tube placement and surgical closure of the wound is the next definitive step. The temporary dressing manages the open pneumothorax initially, but the patient needs a chest tube to reexpand the lung and operative closure of the chest wall defect for definitive care.
- A nurse reviews why permissive hemodynamic targets may be used in a patient with uncontrolled torso hemorrhage before surgical control. Which rationale applies to chest or abdominal bleeding?
- Higher blood pressure stops bleeding
- Blood pressure has no effect on bleeding
- Excessively raising blood pressure can dislodge clots and increase bleeding before control
- Lower pressure causes more bleeding
Correct answer: Excessively raising blood pressure can dislodge clots and increase bleeding before control
Excessively raising blood pressure can dislodge clots and increase bleeding before control. In ongoing torso hemorrhage, pushing the pressure too high may pop fragile clots and worsen blood loss, so resuscitation is balanced until the bleeding source is definitively controlled.
- A patient with a traumatic aortic injury is managed with a thoracic endovascular stent graft. What is the goal of this minimally invasive approach?
- To remove the entire aorta
- To repair the spleen
- To drain the pericardium
- To exclude the injured aortic segment and prevent rupture
Correct answer: To exclude the injured aortic segment and prevent rupture
The goal is to exclude the injured aortic segment and prevent rupture. A stent graft is deployed from within the aorta to cover and seal off the injured area, restoring normal flow while preventing the damaged wall from rupturing, often with less risk than open repair.
- A patient with blunt abdominal trauma is hemodynamically unstable with a positive FAST exam. The nurse prepares the patient for which most appropriate destination?
- The operating room for laparotomy
- Routine inpatient floor admission
- Home discharge
- An outpatient clinic
Correct answer: The operating room for laparotomy
The operating room for laparotomy is the most appropriate destination. An unstable patient with free fluid on FAST has likely intra-abdominal hemorrhage requiring surgical control, so the nurse expedites transfer to the operating room rather than pursuing further delayed imaging.
- A patient with a flail chest is improving but the nurse continues to monitor closely. Which late respiratory complication remains a concern in the days after injury?
- Improved gas exchange
- Pneumonia developing in the contused, poorly ventilated lung
- Complete resolution requiring no monitoring
- Reduced infection risk
Correct answer: Pneumonia developing in the contused, poorly ventilated lung
Pneumonia developing in the contused, poorly ventilated lung remains a concern. Even as the chest wall stabilizes, retained secretions and the underlying contusion predispose to infection, so the nurse maintains pulmonary hygiene and watches for fever and worsening respiratory status.
- A nurse assesses a patient who has both flank ecchymosis and periumbilical ecchymosis after blunt abdominal trauma. The combination should prompt which urgent action?
- Reassurance with no further workup
- Discharge home
- Urgent evaluation and resuscitation for significant intra-abdominal or retroperitoneal hemorrhage
- Application of a chest tube
Correct answer: Urgent evaluation and resuscitation for significant intra-abdominal or retroperitoneal hemorrhage
Urgent evaluation and resuscitation for significant intra-abdominal or retroperitoneal hemorrhage is appropriate. Grey Turner's and Cullen's signs together indicate substantial deep bleeding tracking to the skin, so the nurse expedites imaging, monitoring, and resuscitation.
- A trauma patient with chest trauma has a tension pneumothorax relieved by chest tube, but the lung fails to fully reexpand and a large continuous air leak persists. The nurse recognizes this may indicate which serious injury?
- A minor pleural irritation
- A healed lung
- A pelvic fracture
- A tracheobronchial (major airway) injury
Correct answer: A tracheobronchial (major airway) injury
This may indicate a tracheobronchial injury. A persistent large air leak with failure of the lung to reexpand after adequate chest tube drainage suggests a significant tear in a major airway, which often requires bronchoscopy and surgical repair.
- A trauma nurse is asked which compartment of the lower leg is most frequently affected by acute compartment syndrome following a tibial fracture. Which compartment should the nurse identify?
- The deep posterior compartment
- The lateral compartment
- The anterior compartment
- The superficial posterior compartment
Correct answer: The anterior compartment
The anterior compartment is the most frequently affected in acute compartment syndrome of the lower leg. It is the tightest of the four leg compartments and houses the muscles that dorsiflex the foot along with the deep peroneal nerve, so swelling there quickly raises pressure and threatens the structures within. Early loss of sensation in the first web space of the foot reflects involvement of that nerve.
- A nurse caring for a patient with a forearm crush injury wants to recognize early motor compromise specific to compartment syndrome of the forearm. Which finding would the nurse expect first?
- A complete inability to feel the entire arm
- Loss of shoulder movement
- Pain when the fingers are passively extended
- A sudden drop in blood pressure
Correct answer: Pain when the fingers are passively extended
Pain when the fingers are passively extended is an early and specific sign of forearm compartment syndrome. Passively stretching the muscles within the swollen flexor compartment provokes sharp pain well before pulse loss or paralysis develops. Loss of shoulder movement and global arm numbness are not the focused early findings the nurse should rely on for the forearm compartments.
- A nurse is reviewing why supplemental oxygen is provided to a patient with developing compartment syndrome while definitive decompression is arranged. Which rationale is most accurate?
- Oxygen lowers the intracompartmental pressure directly
- Oxygen prevents the fascia from tearing
- Maximizing oxygen delivery helps support tissue already at risk of ischemia
- Oxygen eliminates the need for fasciotomy
Correct answer: Maximizing oxygen delivery helps support tissue already at risk of ischemia
Maximizing oxygen delivery helps support tissue already at risk of ischemia in compartment syndrome. While only decompression relieves the mechanical pressure, ensuring the blood reaching the marginally perfused tissue carries as much oxygen as possible may help limit ongoing cellular injury. Oxygen does not reduce compartment pressure or replace the need for fasciotomy.
- A nurse removes all circumferential dressings and a splint from a limb suspected of early compartment syndrome but the patient's pain and tightness persist. What does this response indicate about the next step?
- The problem is fully resolved and no further action is needed
- The limb should be wrapped again more tightly
- Ice should be packed around the limb
- External constriction was not the cause, and urgent surgical evaluation is warranted
Correct answer: External constriction was not the cause, and urgent surgical evaluation is warranted
Persistent pain and tightness after removing all external constriction indicate that the source is internal swelling rather than the dressing, so urgent surgical evaluation is warranted. Relieving casts and wraps is an important first measure, but when symptoms continue the rising intracompartmental pressure itself must be addressed, often by fasciotomy. Re-wrapping or icing would only delay needed decompression.
- A nurse is teaching that poikilothermia is sometimes listed among the signs associated with the six Ps of compartment syndrome. What does poikilothermia describe in this context?
- The limb taking on the temperature of its surroundings because perfusion is impaired
- A persistent high fever caused by the injury
- Excessive sweating of the affected limb
- A burning sensation deep in the muscle
Correct answer: The limb taking on the temperature of its surroundings because perfusion is impaired
Poikilothermia describes the affected limb taking on the temperature of its surroundings because impaired perfusion prevents it from maintaining normal warmth. As arterial inflow drops, the limb can no longer regulate its own temperature and feels cool to the touch. This is a late perfusion-related finding rather than a fever or a sensory symptom.
- A new nurse asks why nurses are taught to act on the six Ps of compartment syndrome rather than waiting for all six to be present. Which response is most accurate?
- All six Ps always appear at the same moment
- Only pulselessness truly matters for the diagnosis
- The six Ps are unrelated to tissue perfusion
- Waiting for the full set means waiting until irreversible damage has likely occurred
Correct answer: Waiting for the full set means waiting until irreversible damage has likely occurred
Waiting for all six Ps means waiting until irreversible damage has likely occurred. The later signs such as pulselessness and paralysis appear only after prolonged ischemia, so a nurse who delays until the complete picture develops will miss the window for limb-saving decompression. Acting on early pain and paresthesia drives timely intervention.
- A patient with a long-bone fracture develops fat embolism syndrome with worsening confusion and agitation. The nurse recognizes these neurologic changes are caused primarily by which process?
- A bacterial meningitis from the fracture site
- A direct blow to the head during the original injury
- Fat globules and inflammatory effects reaching the cerebral circulation
- Hypoglycemia from the muscle injury
Correct answer: Fat globules and inflammatory effects reaching the cerebral circulation
The neurologic changes of fat embolism syndrome are caused primarily by fat globules and their inflammatory effects reaching the cerebral circulation. The emboli and the free fatty acids they release impair small cerebral vessels and brain tissue, producing confusion, restlessness, and at times decreased consciousness. These changes stem from the embolic process itself rather than from infection or a separate head injury.
- A nurse is differentiating fat embolism syndrome from a pulmonary thromboembolism in a patient who is several days post femur fracture. Which feature most favors fat embolism syndrome rather than a clot?
- Sudden pleuritic chest pain with a normal skin exam
- A petechial rash over the chest and conjunctivae accompanying the respiratory and neurologic changes
- Unilateral leg swelling with a palpable cord
- An immediate onset at the moment of injury
Correct answer: A petechial rash over the chest and conjunctivae accompanying the respiratory and neurologic changes
A petechial rash over the chest and conjunctivae accompanying respiratory and neurologic changes most favors fat embolism syndrome. This triad of breathing difficulty, altered mentation, and characteristic petechiae is distinctive for fat embolism, whereas a unilateral swollen leg with a palpable cord points toward venous thrombosis. The petechiae in particular are not a feature of a simple thromboembolism.
- A nurse wants to reduce the chance of fat embolism syndrome in a patient with a femoral shaft fracture awaiting the operating room. Which measure most directly lowers that risk?
- Keeping the fracture unsplinted to allow drainage
- Frequent passive flexion and extension of the fractured limb
- Delaying surgical fixation for several days
- Early immobilization and stabilization of the fractured bone
Correct answer: Early immobilization and stabilization of the fractured bone
Early immobilization and stabilization of the fractured bone most directly lowers the risk of fat embolism syndrome. Securing the fracture limits the repeated movement of bone ends that pumps marrow fat into the venous circulation. Leaving the limb unsplinted or moving it frequently would increase fat release, and delaying fixation prolongs the window of vulnerability.
- A patient with crush-induced rhabdomyolysis is being evaluated. Which serum creatine kinase pattern best reflects clinically significant muscle injury warranting close renal monitoring?
- A value at the upper limit of normal that stays flat
- A markedly elevated level several times above the normal range
- A value below the normal range
- A normal level with a high white blood cell count
Correct answer: A markedly elevated level several times above the normal range
A markedly elevated creatine kinase several times above the normal range best reflects clinically significant muscle injury that warrants close renal monitoring. The degree of elevation tracks with the amount of muscle broken down and the resulting myoglobin load filtered by the kidneys. A normal or low value would not indicate the substantial muscle damage that places the kidneys at risk.
- A nurse anticipates that a provider may order sodium bicarbonate for a patient with severe rhabdomyolysis. What is the intended benefit of alkalinizing the urine in this setting?
- To reduce the precipitation and toxicity of myoglobin within the renal tubules
- To rapidly raise the serum potassium level
- To dissolve the fractured bone fragments
- To increase the breakdown of muscle tissue
Correct answer: To reduce the precipitation and toxicity of myoglobin within the renal tubules
Alkalinizing the urine is intended to reduce the precipitation and toxicity of myoglobin within the renal tubules. A more alkaline urine keeps myoglobin soluble and limits the formation of obstructing casts and harmful free radicals that injure the tubular cells. The goal is renal protection, not raising potassium or altering bone.
- A nurse is screening trauma patients for rhabdomyolysis. Beyond crush and electrical injuries, which additional patient circumstance should raise suspicion for this complication?
- A brief episode of mild diarrhea
- A patient found down and immobile on a hard surface for many hours after a fall
- A small clean laceration repaired in triage
- A stable closed nasal fracture
Correct answer: A patient found down and immobile on a hard surface for many hours after a fall
A patient found down and immobile on a hard surface for many hours should raise suspicion for rhabdomyolysis. Prolonged pressure of the body's own weight against a firm surface compresses muscle and produces the same breakdown as an external crush. Minor injuries such as a small laceration or a nasal fracture do not generate the muscle destruction that releases myoglobin.
- A nurse reviews fluid management for a patient with rhabdomyolysis who also has a history of heart failure. Which nursing action best balances renal protection with the patient's cardiac risk?
- Withhold all intravenous fluids to protect the heart
- Give aggressive fluids while closely monitoring for signs of fluid overload
- Restrict fluids to less than maintenance regardless of urine output
- Replace fluids only with concentrated potassium solutions
Correct answer: Give aggressive fluids while closely monitoring for signs of fluid overload
Giving aggressive fluids while closely monitoring for signs of fluid overload best balances renal protection with cardiac risk. The patient still needs substantial fluid to flush myoglobin and protect the kidneys, but the nurse must watch for crackles, rising oxygen needs, and edema so therapy can be adjusted. Withholding or severely restricting fluids would leave the kidneys vulnerable to myoglobin injury.
- A patient is freed from beneath a collapsed wall after several hours and the team is concerned about crush syndrome. Which immediate cardiac monitor change should most alert the nurse to dangerous hyperkalemia at reperfusion?
- Shortened, flattened T waves
- Tall, peaked T waves with a widening QRS complex
- A regular sinus rhythm at 80 beats per minute
- An isolated prolonged PR interval with no other changes
Correct answer: Tall, peaked T waves with a widening QRS complex
Tall, peaked T waves with a widening QRS complex should most alert the nurse to dangerous hyperkalemia at reperfusion in crush syndrome. As potassium surges from the freed muscle, these are the classic progressive ECG changes that precede life-threatening dysrhythmias. A normal sinus rhythm or an isolated PR change would not carry the same urgency.
- A nurse is explaining the goal of avoiding tightly applied bandages or splints over a recently released crush-injured limb. Which rationale is most accurate?
- External constriction can worsen swelling-related compartment pressure and impede perfusion
- Tight bandages speed the breakdown of myoglobin
- Constriction is needed to trap potassium in the limb permanently
- A tight wrap will eliminate the need for fluids
Correct answer: External constriction can worsen swelling-related compartment pressure and impede perfusion
External constriction can worsen swelling-related compartment pressure and impede perfusion in a crush-injured limb. After reperfusion the tissue swells within its fascial spaces, and adding a tight wrap raises pressure further and can tip the limb into compartment syndrome. Loose protection that allows monitoring is preferred over compressive dressings.
- A nurse is caring for a patient with crush syndrome and reviews why hypovolemia develops even without obvious external bleeding. Which explanation is most accurate?
- The kidneys retain all fluid, raising blood volume
- The injury causes the spleen to absorb extra blood
- The patient loses fluid only through sweating
- Large volumes of fluid shift into the injured, swollen muscle tissue, depleting the circulation
Correct answer: Large volumes of fluid shift into the injured, swollen muscle tissue, depleting the circulation
Large volumes of fluid shift into the injured, swollen muscle tissue, depleting the circulation in crush syndrome. The damaged muscle sequesters water out of the vascular space, producing hypovolemia and reduced kidney perfusion even when no blood is visibly lost. This third-spacing is a major reason aggressive intravenous fluid replacement is required.
- A trauma team is managing a patient with bilateral leg crush injuries and the nurse anticipates a key laboratory derangement that can be both a cause and a marker of muscle damage. Which value should the nurse expect to be elevated and monitor closely?
- Serum potassium
- Serum calcium
- Hemoglobin
- Serum sodium
Correct answer: Serum potassium
Serum potassium should be expected to rise and be monitored closely in crush syndrome. Damaged muscle cells release their intracellular potassium into the blood, and this hyperkalemia is the leading early threat to life through cardiac dysrhythmias. Calcium tends to fall in this setting, and hemoglobin and sodium are not the hallmark derangements of muscle breakdown.
- A patient arrives with a traumatic finger amputation and the severed digit is being transported correctly. The nurse explains why the part is kept cool but never placed in direct contact with ice. Which reason is most accurate?
- Direct ice contact causes frostbite that destroys the tissue and prevents replantation
- Direct ice contact makes the part too heavy to transport
- Cooling has no effect on tissue survival
- Ice contact will dissolve the bone within the digit
Correct answer: Direct ice contact causes frostbite that destroys the tissue and prevents replantation
Direct ice contact causes frostbite that destroys the tissue and prevents replantation. Freezing forms ice crystals that rupture cells and render the part unusable, so the digit is wrapped and placed in a sealed bag set on ice rather than against it. Cooling without freezing slows metabolism and preserves viability for possible reattachment.
- A nurse is documenting the assessment of a stump after a traumatic below-knee amputation. Which finding would be most concerning and require immediate provider notification?
- A small amount of serous drainage on the dressing
- Mild aching reported at the stump
- A clean, approximated incision line
- Continued bright-red bleeding that saturates the dressing despite pressure
Correct answer: Continued bright-red bleeding that saturates the dressing despite pressure
Continued bright-red bleeding that saturates the dressing despite pressure is most concerning and requires immediate provider notification. This pattern suggests ongoing arterial hemorrhage from the stump, which can rapidly cause shock if not controlled. A small amount of serous drainage and mild aching are expected, and an intact incision line is reassuring rather than alarming.
- A patient sustains a traumatic amputation of the lower leg in an industrial accident. After hemorrhage is controlled, which nursing intervention best supports infection prevention for the residual limb before surgery?
- Applying a dry, non-sterile cloth and leaving it open to the air
- Scrubbing the open stump vigorously with alcohol
- Packing the wound tightly with cotton balls
- Covering the wound with a sterile saline-moistened dressing
Correct answer: Covering the wound with a sterile saline-moistened dressing
Covering the wound with a sterile saline-moistened dressing best supports infection prevention for the residual limb. A sterile, moist dressing protects exposed tissue from contamination while keeping it from drying out before surgical management. A non-sterile cloth, harsh scrubbing, or cotton packing would introduce contaminants or damage the wound bed.
- A nurse is teaching about why open fractures are sometimes called compound fractures. Which description correctly defines this injury?
- A fracture in which the broken bone communicates with the outside environment through a break in the skin
- A fracture that involves more than one bone but never breaks the skin
- A fracture that heals without any treatment
- A fracture limited to a single hairline crack with intact periosteum
Correct answer: A fracture in which the broken bone communicates with the outside environment through a break in the skin
An open or compound fracture is one in which the broken bone communicates with the outside environment through a break in the skin. This direct connection between the fracture and external contaminants is what defines the injury and drives its high infection risk. A fracture that leaves the skin intact, by contrast, is a closed fracture regardless of how many bones are involved.
- A nurse is preparing a patient with a contaminated open fracture for the operating room and reviews the timing goal for initial wound management. Which principle reflects current trauma practice?
- Antibiotics and debridement can be safely delayed for several days
- Surgery is unnecessary if antibiotics are given
- Wound care should wait until the fracture has fully healed
- Early antibiotic administration is prioritized, with timely surgical debridement to limit infection
Correct answer: Early antibiotic administration is prioritized, with timely surgical debridement to limit infection
Early antibiotic administration is prioritized, with timely surgical debridement to limit infection in open fractures. Prompt antibiotics begun as soon as possible after injury, combined with operative cleansing of the wound, together provide the best protection against deep infection and osteomyelitis. Delaying these steps or relying on antibiotics alone without debridement increases the infection risk.
- A patient with an open ankle fracture is to receive antibiotic prophylaxis. Which class of antibiotic is most commonly chosen as the initial coverage for a typical low-grade open fracture?
- A first-generation cephalosporin targeting gram-positive skin organisms
- An antifungal agent
- An antiviral medication
- A medication used only for tuberculosis
Correct answer: A first-generation cephalosporin targeting gram-positive skin organisms
A first-generation cephalosporin targeting gram-positive skin organisms is most commonly chosen as initial coverage for a typical low-grade open fracture. These organisms from the skin are the usual contaminants, so early gram-positive coverage addresses the most likely source of infection, with broader coverage added for heavily contaminated or higher-grade wounds. Antifungal, antiviral, and antitubercular agents do not address the relevant bacteria.
- A nurse caring for a patient with a splinted open tibial fracture performs serial neurovascular checks. What is the primary purpose of repeating these assessments at regular intervals rather than once?
- To document the patient's pain medication preferences
- To detect developing vascular compromise or compartment syndrome before permanent damage occurs
- To determine the patient's discharge date
- To measure the patient's height and weight trends
Correct answer: To detect developing vascular compromise or compartment syndrome before permanent damage occurs
The primary purpose of serial neurovascular checks is to detect developing vascular compromise or compartment syndrome before permanent damage occurs. Perfusion and nerve function can deteriorate over time as swelling progresses, so a single normal exam is not enough and repeated assessments reveal subtle changes early. This monitoring allows timely intervention to save the limb.
- A nurse is preparing to remove a tourniquet that has been in place for a prolonged period during transport. Which assessment should the nurse be most prepared to manage immediately after release?
- A sudden surge of potassium and acidic blood entering the circulation
- A rapid rise in body height
- An increase in the patient's appetite
- A change in eye color
Correct answer: A sudden surge of potassium and acidic blood entering the circulation
The nurse should be most prepared to manage a sudden surge of potassium and acidic blood entering the circulation after prolonged tourniquet release. Ischemic tissue beyond the tourniquet accumulates potassium and metabolic acids, which wash into the central circulation when flow is restored and can cause dysrhythmias and hypotension. This reperfusion effect is the key danger requiring close monitoring at release.
- A bystander placed an improvised tourniquet using a belt before EMS arrival, and bleeding has slowed but not stopped. What is the most appropriate action when a manufactured tourniquet becomes available?
- Remove the belt and rely only on direct pressure
- Leave the belt alone because it is partially working
- Apply the manufactured tourniquet and tighten it effectively, then reassess bleeding
- Loosen the belt periodically to restore circulation
Correct answer: Apply the manufactured tourniquet and tighten it effectively, then reassess bleeding
Applying the manufactured tourniquet and tightening it effectively, then reassessing bleeding, is most appropriate when an improvised device only partly controls hemorrhage. Belts and other improvised tourniquets often cannot generate enough sustained pressure to fully occlude arterial flow, so a purpose-built windlass device that stops the bleeding is preferred. Removing control or intermittently loosening would risk continued life-threatening blood loss.
- A nurse is teaching that a properly applied tourniquet is expected to be painful for the patient. Why is it important to anticipate and address this pain rather than loosen the device?
- Loosening the tourniquet to relieve pain can restart life-threatening bleeding
- Pain from a tourniquet means it is positioned incorrectly and must be removed
- Tourniquet pain indicates the limb is already dead
- Loosening the device improves the patient's outcome
Correct answer: Loosening the tourniquet to relieve pain can restart life-threatening bleeding
Loosening a properly applied tourniquet to relieve pain can restart life-threatening bleeding, so the pain should be anticipated and managed instead. Effective arterial occlusion is uncomfortable, but that discomfort is the price of controlling hemorrhage, and analgesia is provided while the tourniquet stays in place. Releasing it for comfort would undo the bleeding control it was placed to achieve.
- A nurse reviews the principle that early tourniquet use for life-threatening extremity hemorrhage saves lives even though it stops blood flow to the limb. Which statement best reflects this priority?
- Preserving the limb always takes priority over controlling bleeding
- Controlling lethal hemorrhage takes priority, accepting temporary limb ischemia to preserve life
- A tourniquet should be used only as an absolute last resort after all other measures fail
- Tourniquets cause more deaths than they prevent
Correct answer: Controlling lethal hemorrhage takes priority, accepting temporary limb ischemia to preserve life
Controlling lethal hemorrhage takes priority, accepting temporary limb ischemia to preserve life. When an extremity is bleeding catastrophically, stopping the blood loss is more important than the limb, and timely tourniquet use is now recognized as a lifesaving measure rather than a last resort. The limb can usually tolerate the period of ischemia required to reach definitive care.
- A nurse is assessing a patient who survived a building collapse and is concerned about both crush syndrome and acute kidney injury. Which urine characteristic, combined with a high creatine kinase, would most strongly support myoglobin-induced renal risk?
- Clear, pale-yellow urine
- Dark tea-colored or cola-colored urine
- Cloudy urine with a strong ammonia odor
- Frothy urine that clears on standing
Correct answer: Dark tea-colored or cola-colored urine
Dark tea-colored or cola-colored urine combined with a high creatine kinase most strongly supports myoglobin-induced renal risk. The pigment from myoglobin filtered into the urine produces this characteristic dark color, and together with markedly elevated creatine kinase it signals substantial muscle breakdown threatening the kidneys. Clear urine would suggest myoglobinuria is not the active concern.
- A nurse is teaching a trauma course about why hemorrhage from a mangled extremity is addressed before completing the rest of the primary survey when the bleeding is catastrophic. Which principle supports controlling massive external limb bleeding first?
- Limb bleeding is rarely serious and can wait
- Hemorrhage control is irrelevant if the airway is patent
- Uncontrolled massive extremity hemorrhage can cause death faster than most other immediately treatable injuries
- Bleeding always stops on its own without intervention
Correct answer: Uncontrolled massive extremity hemorrhage can cause death faster than most other immediately treatable injuries
Uncontrolled massive extremity hemorrhage can cause death faster than most other immediately treatable injuries, which is why catastrophic limb bleeding is controlled first. Rapid exsanguination from a major vessel can kill within minutes, so applying direct pressure or a tourniquet to stop the bleeding takes immediate priority. The other statements understate the lethal speed of uncontrolled hemorrhage.
- An 80-kg man has full-thickness burns covering both entire legs and the anterior trunk. Using the adult Rule of Nines and the Parkland formula, what is his estimated 24-hour lactated Ringer's requirement?
- 17,280 mL
- 8,640 mL
- 11,520 mL
- 5,760 mL
Correct answer: 17,280 mL
17,280 mL is correct. Both entire legs total 36% and the anterior trunk adds 18%, giving 54% TBSA; the Parkland calculation is 4mL×80kg×54=17,280mL over 24 hours.
- A 60-kg burn patient is calculated to need 9,600 mL by the Parkland formula. How much of this volume should be infused during the first 8 hours after injury?
- 3,200 mL
- 4,800 mL
- 2,400 mL
- 9,600 mL
Correct answer: 4,800 mL
4,800 mL is correct. The Parkland formula directs that half of the total 24-hour volume be delivered in the first 8 hours, and half of 9,600 mL is 4,800 mL.
- A nurse notes the urine output of an adult burn patient has fallen to 15 mL/hr during Parkland resuscitation. Which adjustment is most appropriate?
- Administer a loop diuretic
- Stop all intravenous fluids
- Increase the fluid infusion rate
- Switch from lactated Ringer's to dextrose in water
Correct answer: Increase the fluid infusion rate
Increasing the fluid infusion rate is correct. A urine output below the 0.5 mL/kg/hr target signals under-resuscitation, so the rate is titrated upward toward adequate perfusion rather than treating the low output with a diuretic.
- Which intravenous fluid is the standard crystalloid used in Parkland formula burn resuscitation?
- 25% albumin
- 5% dextrose in water
- 3% hypertonic saline
- Lactated Ringer's solution
Correct answer: Lactated Ringer's solution
Lactated Ringer's solution is correct. Its balanced electrolyte composition closely matches extracellular fluid and helps buffer the metabolic acidosis of burn shock, making it the preferred crystalloid for the calculated Parkland volume.
- The Parkland formula calculates fluid needs based on body weight and which additional variable?
- Percent total body surface area burned
- The patient's age in years
- The depth of the deepest burn in millimeters
- The serum carboxyhemoglobin level
Correct answer: Percent total body surface area burned
Percent total body surface area burned is correct. The Parkland formula multiplies 4 mL by the patient's weight in kilograms and by the percentage of TBSA involved, so accurate burn-size estimation is essential to the calculation.
- A 25-kg child has burns to 20% TBSA. Using the Parkland formula of 4 mL per kilogram per percent TBSA, what total volume is calculated for the first 24 hours before any maintenance fluid is added?
- 1,000 mL
- 2,000 mL
- 4,000 mL
- 500 mL
Correct answer: 2,000 mL
2,000 mL is correct. The Parkland resuscitation calculation is 4mL×25kg×20=2,000mL; in children this resuscitation volume is given in addition to routine maintenance fluids.
- Using the adult Rule of Nines, what percentage of total body surface area is assigned to one entire lower extremity?
Correct answer: 18%
18% is correct. In the adult Rule of Nines each entire lower limb, front and back combined, is assigned 18%, in contrast to each upper limb at 9%.
- An adult sustains burns to the entire front of the right arm and the entire front of the left arm. Using the adult Rule of Nines, what is the estimated TBSA?
Correct answer: 9%
9% is correct. In the adult Rule of Nines a whole arm is 9%, so its anterior surface is 4.5%; the anterior surfaces of both arms together equal 9%.
- In the adult Rule of Nines, the perineum or genitalia is conventionally assigned what percentage of total body surface area?
Correct answer: 1%
1% is correct. The Rule of Nines allots the body in multiples of nine across the major regions and assigns the remaining 1% to the perineum and genitalia.
- How does the head allocation in the standard infant Rule of Nines differ from the adult version?
- The infant head is assigned the same 9% as an adult
- The infant head is assigned about 18% rather than the adult 9%
- The infant head is assigned about 4.5%
- The infant head is excluded from the calculation
Correct answer: The infant head is assigned about 18% rather than the adult 9%
The infant head being about 18% rather than 9% is correct. An infant's head is proportionally much larger, so the pediatric modification of the Rule of Nines roughly doubles the head allocation and reduces the legs accordingly.
- A burned adult has the entire back of the trunk and the entire back of both legs involved. Using the adult Rule of Nines, what is the estimated TBSA?
Correct answer: 36%
36% is correct. The posterior trunk is 18% and the posterior surface of each leg is 9%, so the back of both legs adds 18%, totaling 36%.
- Why is the Rule of Nines best regarded as a rapid field estimate rather than a precise measurement of burn size?
- It overstates fluid needs in every patient
- It requires laboratory confirmation before use
- It can only be applied to full-thickness burns
- It divides the body into large fixed regions that do not adjust for body shape or age
Correct answer: It divides the body into large fixed regions that do not adjust for body shape or age
Dividing the body into large fixed regions that do not adjust for shape or age is correct. The Rule of Nines trades precision for speed, so when accuracy matters the age-adjusted Lund-Browder chart is used to refine the TBSA estimate.
- When estimating burn size, which body region's proportional allocation changes the most between an infant and an adult?
- The head
- Each arm
- The anterior trunk
- The perineum
Correct answer: The head
The head is correct. The head's proportion of body surface shrinks markedly as a person ages while the legs grow proportionally, which is the central adjustment built into the Lund-Browder chart and the pediatric Rule of Nines.
- Which feature distinguishes a deep partial-thickness burn that should be counted in the TBSA from a superficial first-degree burn that should not?
- Painless dry brown leathery skin
- Blister formation and weeping with damage extending into the dermis
- Dry red skin that blanches with pressure and no blisters
- Complete loss of all skin layers down to muscle
Correct answer: Blister formation and weeping with damage extending into the dermis
Blister formation and weeping with dermal involvement is correct. Partial-thickness burns breach the dermis, cause fluid shifts, and are included in TBSA, whereas a dry, blanching, non-blistering first-degree burn spares the dermis and is excluded.
- A nurse must estimate TBSA for a 4-year-old with scattered scald burns. Which approach yields the most accurate result?
- Counting only blistered areas
- The unmodified adult Rule of Nines
- An age-specific Lund-Browder chart
- The Parkland formula applied without a TBSA value
Correct answer: An age-specific Lund-Browder chart
An age-specific Lund-Browder chart is correct. Because a young child's body proportions differ sharply from an adult's, the Lund-Browder chart's age-adjusted regional percentages provide the most accurate pediatric TBSA estimate to drive resuscitation.
- Why does an accurate TBSA estimate directly affect patient safety during the first hours of burn care?
- It selects the antibiotic class for wound prophylaxis
- It establishes the patient's tetanus status
- It sets the dose of inhaled bronchodilators
- It determines the calculated resuscitation fluid volume, so errors cause over- or under-resuscitation
Correct answer: It determines the calculated resuscitation fluid volume, so errors cause over- or under-resuscitation
Determining the calculated resuscitation volume is correct. Because formulas multiply fluid by the TBSA percentage, overestimating drives fluid overload and compartment syndromes while underestimating causes burn shock, making accurate sizing a safety priority.
- Which burn depth is characterized by a dry, leathery, white or charred appearance that does not blanch and lacks sensation at the center?
- Full-thickness burn
- Superficial first-degree burn
- Superficial partial-thickness burn
- Deep partial-thickness burn that blanches briskly
Correct answer: Full-thickness burn
A full-thickness burn is correct. Destruction of the entire epidermis and dermis produces a dry, non-blanching, leathery eschar that is insensate at its center because the dermal nerve endings have been destroyed.
- A patient escaping a chemical-storage fire develops progressive wheezing and hypoxia several hours after exposure with an initially normal chest x-ray. This delayed picture is most consistent with which component of inhalation injury?
- Simple upper-airway thermal burn only
- Lower-airway and parenchymal chemical injury
- Carbon monoxide displacing oxygen on hemoglobin
- A traumatic pneumothorax
Correct answer: Lower-airway and parenchymal chemical injury
Lower-airway and parenchymal chemical injury is correct. Toxic combustion products damage the small airways and alveoli over hours, producing delayed bronchospasm, mucosal sloughing, and hypoxia even when early imaging looks normal.
- Which factor in a burn history most raises suspicion for inhalation injury and the need for early airway evaluation?
- The burn involved only the lower legs
- The burn occurred outdoors in open air
- The burn occurred in a closed space such as a house fire
- The patient was awake and speaking clearly throughout
Correct answer: The burn occurred in a closed space such as a house fire
A burn occurring in a closed space is correct. Entrapment in an enclosed, smoke-filled environment greatly increases exposure to heat and toxic gases, so this mechanism alone warrants close airway monitoring for evolving inhalation injury.
- After a patient with facial burns is intubated for inhalation injury, why is it important to secure the endotracheal tube with ties rather than relying on tape over burned skin?
- Ties eliminate the need for cuff inflation
- Ties reduce the patient's fluid requirement
- Tape increases the carboxyhemoglobin level
- Burned and edematous facial skin will not hold adhesive, risking dislodgement
Correct answer: Burned and edematous facial skin will not hold adhesive, risking dislodgement
Burned, edematous skin not holding adhesive is correct. Because re-intubation through a swollen airway can be impossible, the tube is anchored with cloth ties or a commercial holder rather than tape that will not adhere to weeping, blistered facial skin.
- A patient rescued from a structure fire has soot around the mouth and nose but is currently breathing comfortably with normal oxygen saturation. What is the priority nursing concern?
- Anticipating progressive airway edema and preparing for early intubation
- Reassurance that no airway risk exists because saturation is normal
- Immediate discharge planning
- Delaying any reassessment for several hours
Correct answer: Anticipating progressive airway edema and preparing for early intubation
Anticipating progressive airway edema is correct. Inhalation injury can evolve over hours, and a comfortable patient with soot and facial involvement can deteriorate rapidly, so close monitoring and readiness for early airway control are essential before swelling occludes the airway.
- A patient with smoke inhalation has a high anion-gap metabolic acidosis and an elevated lactate despite oxygen therapy and a normal carboxyhemoglobin trend. Which co-toxin should be suspected?
- Acetaminophen
- Cyanide
- Iron
- Ethylene glycol
Correct answer: Cyanide
Cyanide is correct. Combustion of household synthetics releases hydrogen cyanide, which blocks cellular oxygen use and produces a profound lactic acidosis; it frequently coexists with carbon monoxide and may require hydroxocobalamin treatment.
- A patient pulled from a fire is somnolent with a measured carboxyhemoglobin level of 30%. Which intervention is the immediate priority?
- Administer an oral analgesic
- Begin a fluid bolus of dextrose solution
- Apply 100% oxygen by non-rebreather mask
- Place the patient on room air for monitoring
Correct answer: Apply 100% oxygen by non-rebreather mask
Applying 100% oxygen is correct. High-concentration oxygen accelerates displacement of carbon monoxide from hemoglobin, and at this level with altered mental status, immediate high-flow oxygen is the first step while hyperbaric therapy is considered.
- Which classic but unreliable physical finding has been associated with severe carbon monoxide poisoning?
- Bronze-gray skin
- Cyanotic blue lips
- Jaundiced sclera
- Cherry-red skin coloration
Correct answer: Cherry-red skin coloration
Cherry-red skin coloration is correct. Carboxyhemoglobin imparts a bright red hue, but this sign is uncommon and usually appears only in severe or fatal cases, so its absence never rules out carbon monoxide poisoning.
- Which presenting symptom cluster should prompt a nurse to suspect carbon monoxide poisoning in multiple family members from the same household during winter?
- Headache, nausea, dizziness, and confusion in several people at once
- Isolated ankle pain in one person
- A single person's productive cough lasting weeks
- Localized rash without systemic symptoms
Correct answer: Headache, nausea, dizziness, and confusion in several people at once
Simultaneous headache, nausea, dizziness, and confusion across household members is correct. A shared, flu-like neurologic picture appearing together, especially when heating systems are in use, is a hallmark of common-source carbon monoxide exposure.
- Hyperbaric oxygen therapy is considered for carbon monoxide poisoning primarily because it accomplishes which goal?
- It directly neutralizes cyanide
- It speeds elimination of carbon monoxide and may reduce delayed neurologic sequelae
- It raises the patient's body temperature
- It lowers the percentage of body surface burned
Correct answer: It speeds elimination of carbon monoxide and may reduce delayed neurologic sequelae
Speeding carbon monoxide elimination and reducing delayed neurologic sequelae is correct. Pressurized oxygen drives carbon monoxide off hemoglobin far faster than normobaric oxygen and is used in severe cases such as syncope, neurologic deficits, or very high levels.
- A 28-week-pregnant woman is exposed to carbon monoxide. Why may the fetus be at greater risk than the mother despite similar exposure?
- Fetal hemoglobin releases carbon monoxide faster than maternal hemoglobin
- The fetus has no exposure through the placenta
- Fetal hemoglobin binds carbon monoxide more avidly and clears it more slowly
- Carbon monoxide cannot cross the placenta
Correct answer: Fetal hemoglobin binds carbon monoxide more avidly and clears it more slowly
Fetal hemoglobin binding carbon monoxide more avidly and clearing it more slowly is correct. Because carbon monoxide crosses the placenta and fetal hemoglobin has a higher affinity for it, fetal levels can exceed maternal levels and persist longer, so maternal oxygen is continued well after maternal symptoms resolve.
- A circumferential full-thickness burn encircles an extremity. What assessment should the nurse perform serially to detect a developing need for escharotomy?
- The Glasgow Coma Scale score alone
- Only the patient's oral temperature
- The serum carboxyhemoglobin level every hour
- Distal pulses, capillary refill, sensation, and color of the limb
Correct answer: Distal pulses, capillary refill, sensation, and color of the limb
Serial assessment of distal pulses, capillary refill, sensation, and color is correct. As edema builds beneath the unyielding eschar, these neurovascular checks reveal progressive ischemia and signal when escharotomy is required to restore perfusion.
- Which statement about pain control during a bedside escharotomy of full-thickness burn eschar is most accurate?
- The eschar itself is insensate, but adjacent viable tissue still requires analgesia
- No analgesia is ever required because the entire limb is numb
- Only general anesthesia in the operating room is acceptable
- Pain control is unnecessary because escharotomy is painless everywhere
Correct answer: The eschar itself is insensate, but adjacent viable tissue still requires analgesia
The eschar being insensate while adjacent tissue needs analgesia is correct. The incision through dead full-thickness eschar causes little pain, but the procedure extends into sensate margins and provokes anxiety, so analgesia and sedation are still provided.
- After an extremity escharotomy is performed for a circumferential burn, which finding indicates the procedure successfully restored perfusion?
- Complete absence of any bleeding at the incision
- Return of palpable distal pulses and improved capillary refill
- A rising peak airway pressure
- A falling urine output
Correct answer: Return of palpable distal pulses and improved capillary refill
Return of palpable distal pulses and improved capillary refill is correct. Relief of the constricting eschar allows blood flow to resume, so reappearance of pulses, warmth, and brisk capillary refill confirms the escharotomy achieved its goal.
- Where are escharotomy incisions typically placed on a circumferentially burned limb to relieve constriction?
- Only across the palmar surface of the hand
- In a circular pattern around the limb
- Along the medial and lateral aspects of the extremity
- Transversely across the joints
Correct answer: Along the medial and lateral aspects of the extremity
Along the medial and lateral aspects is correct. Longitudinal incisions placed on the sides of the limb open the encircling eschar lengthwise to release tension while avoiding major neurovascular bundles, restoring expansion and perfusion.
- A burn patient with a tight circumferential chest eschar shows rising peak inspiratory pressures and falling tidal volumes on the ventilator. What does a chest escharotomy primarily accomplish here?
- It seals an open pneumothorax
- It directly treats carbon monoxide poisoning
- It reduces the calculated Parkland volume
- It restores chest wall expansion and improves ventilation
Correct answer: It restores chest wall expansion and improves ventilation
Restoring chest wall expansion and improving ventilation is correct. The rigid encircling eschar mechanically restricts the thorax, so longitudinal chest incisions free the chest wall and allow the lungs to expand, lowering airway pressures.
- A 34-week-pregnant trauma patient has no pulse after blunt injury and resuscitation is underway. According to the 4-minute rule, when should the team prepare to perform a perimortem cesarean delivery?
- By 4 minutes of arrest if there is no return of spontaneous circulation
- Only after 20 minutes of failed resuscitation
- Immediately upon arrival regardless of pulse status
- Only after fetal demise is confirmed by ultrasound
Correct answer: By 4 minutes of arrest if there is no return of spontaneous circulation
By 4 minutes of arrest without return of circulation is correct. The 4-minute rule begins the procedure if resuscitation has not restored a pulse, targeting delivery by 5 minutes to relieve aortocaval compression and improve maternal survival.
- At approximately what gestational age does perimortem cesarean section become considered during maternal arrest because the uterus is large enough to compress the great vessels?
- Only at full term, 40 weeks
- Around 20 weeks, when the uterus reaches the umbilicus
- From the moment of conception
- Only after 38 weeks
Correct answer: Around 20 weeks, when the uterus reaches the umbilicus
Around 20 weeks, when the uterus reaches the umbilicus, is correct. At this point the gravid uterus is large enough to compress the inferior vena cava and aorta during arrest, so emptying it can improve maternal hemodynamics even if fetal viability is uncertain.
- During a perimortem cesarean section for maternal cardiac arrest, what should happen to chest compressions?
- They should be replaced by abdominal compressions only
- They should stop entirely once the incision is made
- They should continue without interruption during the procedure
- They should pause until the infant is delivered
Correct answer: They should continue without interruption during the procedure
Continuing compressions without interruption is correct. High-quality CPR proceeds throughout the delivery because the goal is maternal resuscitation; emptying the uterus removes aortocaval compression and makes those ongoing compressions more effective.
- A nurse uses the Pediatric Assessment Triangle and notes an injured child with normal appearance and normal circulation but visible nasal flaring and retractions. Which physiologic category does this indicate?
- Cardiopulmonary failure
- Shock
- A stable child with no concern
- Respiratory distress
Correct answer: Respiratory distress
Respiratory distress is correct. Abnormal work of breathing with otherwise preserved appearance and circulation localizes the problem to respiratory distress, prompting oxygen and airway support before the child decompensates further.
- An injured infant assessed with the Pediatric Assessment Triangle shows a lethargic, poorly responsive appearance with normal breathing and normal skin color. This pattern most strongly suggests which problem?
- A primary brain or systemic disturbance affecting appearance
- Isolated respiratory distress
- Compensated shock
- A normal sleeping infant
Correct answer: A primary brain or systemic disturbance affecting appearance
A primary brain or systemic disturbance affecting appearance is correct. When only the appearance side of the triangle is abnormal, the cause is often neurologic, metabolic, or systemic rather than primarily respiratory or circulatory, directing the focused assessment accordingly.
- Why is a child injured by a lap-belt in a motor vehicle crash at risk for hollow-organ and lumbar spine injury that may be missed on initial exam?
- Children have unusually rigid abdominal walls
- The belt concentrates force on the abdomen and flexes the lumbar spine over the belt
- The belt always sits correctly across the pelvis in children
- Children have proportionally smaller heads that absorb the force
Correct answer: The belt concentrates force on the abdomen and flexes the lumbar spine over the belt
The belt concentrating force on the abdomen and flexing the lumbar spine is correct. Because a child's pelvis is small, a lap belt rides up onto the abdomen, compressing bowel against the spine and producing the seat-belt sign, intestinal injury, and Chance fractures.
- Which airway consideration is unique to managing an injured young child compared with an adult?
- Children rarely develop airway swelling
- A child's airway is wider and more rigid than an adult's
- A relatively large tongue and high anterior larynx make the airway easily obstructed
- A child's epiglottis is smaller and stiffer than an adult's
Correct answer: A relatively large tongue and high anterior larynx make the airway easily obstructed
A relatively large tongue and high anterior larynx are correct. Pediatric airway anatomy, including a proportionally large tongue, a higher and more anterior larynx, and a narrow cricoid, makes obstruction and intubation more challenging and demands careful positioning.
- When the assessment of an injured child reveals an unusual injury pattern, an inconsistent history, and delayed presentation, what is the nurse's appropriate action?
- Document only the parent's version of events
- Discharge the child without further inquiry
- Ignore the inconsistency if vital signs are normal
- Report suspected child maltreatment according to mandatory reporting duties
Correct answer: Report suspected child maltreatment according to mandatory reporting duties
Reporting suspected maltreatment is correct. Injuries inconsistent with the stated mechanism, patterned bruising, and delayed care are red flags for nonaccidental trauma, and the trauma nurse is obligated to document objectively and report suspicion to protect the child.
- Why are infants and small children at higher risk for serious head injury in trauma than older patients?
- A proportionally larger, heavier head on weak neck muscles
- A thicker, fully developed skull
- Completely fused cranial sutures from birth
- A proportionally smaller head than adults
Correct answer: A proportionally larger, heavier head on weak neck muscles
A proportionally larger, heavier head on weak neck muscles is correct. The relatively large head acts as a fulcrum during acceleration-deceleration, and immature neck musculature offers little protection, so head and high cervical injuries are common in young children.
- An 86-year-old fall victim takes a direct oral anticoagulant and struck her head. Why is reversal therapy considered early even with a normal neurologic exam?
- Reversal lowers the patient's fluid requirement
- Anticoagulation can allow intracranial bleeding to expand silently before symptoms appear
- A normal exam fully excludes bleeding in anticoagulated patients
- Reversal agents are used to treat hypothermia
Correct answer: Anticoagulation can allow intracranial bleeding to expand silently before symptoms appear
Anticoagulation allowing silent bleed expansion is correct. Older anticoagulated patients can deteriorate hours after injury as a small hemorrhage grows, so prompt imaging and early reversal of the anticoagulant limit the size of an evolving intracranial bleed.
- Which factor explains why a low-energy ground-level fall can cause life-threatening injury in a frail older adult but not in a young adult?
- Greater pulmonary reserve in older adults
- Increased compensatory tachycardia in older adults
- Diminished physiologic reserve and reduced bone density
- Faster wound healing in older adults
Correct answer: Diminished physiologic reserve and reduced bone density
Diminished physiologic reserve and reduced bone density is correct. Age-related loss of organ reserve, fragile osteoporotic bone, and blunted compensation mean a seemingly minor mechanism can produce major fractures and occult shock in older trauma patients.
- Aggressive pain control of rib fractures plus pulmonary toilet is emphasized in older trauma patients primarily to prevent which complication?
- Autonomic dysreflexia
- Carbon monoxide poisoning
- Compartment syndrome of the chest
- Pneumonia and respiratory failure from splinting and poor cough
Correct answer: Pneumonia and respiratory failure from splinting and poor cough
Pneumonia and respiratory failure from splinting and poor cough is correct. Painful rib fractures cause older adults to take shallow breaths and suppress coughing, leading to atelectasis and pneumonia, so analgesia and lung-clearing measures markedly reduce that risk.
- Why should base-deficit and lactate be checked in an older trauma patient even when blood pressure and heart rate appear normal?
- They can reveal occult hypoperfusion that vital signs fail to show
- They are used to calculate the Rule of Nines
- They determine the gestational age in pregnancy
- They replace the need for any imaging
Correct answer: They can reveal occult hypoperfusion that vital signs fail to show
Revealing occult hypoperfusion is correct. Because medications and blunted compensation can keep vital signs deceptively normal, an elevated lactate or worsening base deficit unmasks ongoing shock in an older patient who looks stable on monitors.
- A pregnant trauma patient beyond 20 weeks gestation must be placed supine briefly for a procedure. What complication is she at risk for, and what is the cause?
- Sudden hypertension from increased venous return
- Supine hypotension from the gravid uterus compressing the inferior vena cava
- Bradycardia from carotid pressure
- Hyperthermia from reduced heat loss
Correct answer: Supine hypotension from the gravid uterus compressing the inferior vena cava
Supine hypotension from caval compression is correct. After about 20 weeks the heavy uterus presses on the inferior vena cava when the patient lies flat, reducing venous return and cardiac output, which is relieved by left lateral tilt or manual uterine displacement.
- Which laboratory test is used to detect and quantify fetomaternal hemorrhage after blunt trauma in pregnancy?
- A serum creatine kinase
- A carboxyhemoglobin level
- The Kleihauer-Betke test
- A standard urinalysis
Correct answer: The Kleihauer-Betke test
The Kleihauer-Betke test is correct. It quantifies fetal red cells in the maternal circulation after trauma, helping to detect significant fetomaternal hemorrhage and guide additional dosing of Rh immune globulin in an Rh-negative mother.
- An older trauma patient on chronic diuretic therapy arrives after a motor vehicle crash. How does this medication most likely affect the resuscitation picture?
- It prevents the development of hypotension
- It guarantees fluid overload during resuscitation
- It raises the heart rate sharply during blood loss
- It can produce baseline volume depletion that worsens the response to hemorrhage
Correct answer: It can produce baseline volume depletion that worsens the response to hemorrhage
Baseline volume depletion worsening the response is correct. Chronic diuretic use leaves many older adults already intravascularly depleted, so they decompensate faster with blood loss and require careful, monitored fluid resuscitation rather than blanket large-volume boluses.
- A 90-kg adult sustains burns to the entire head and one entire arm using the adult Rule of Nines. What is the estimated TBSA, and what 24-hour Parkland volume results?
- 18% TBSA and 6,480 mL
- 9% TBSA and 3,240 mL
- 27% TBSA and 9,720 mL
- 18% TBSA and 12,960 mL
Correct answer: 18% TBSA and 6,480 mL
18% TBSA and 6,480 mL is correct. The head is 9% and a whole arm is 9% for a total of 18%, and the Parkland calculation is 4mL×90kg×18=6,480mL over 24 hours.
- A burn patient develops fluid overload and worsening edema partway through resuscitation, a complication sometimes called fluid creep. What is the most appropriate response?
- Continue the fixed calculated rate regardless of urine output
- Titrate the fluid rate down toward the minimum that maintains the urine-output target
- Stop all fluids abruptly until edema resolves
- Double the infusion rate to flush the system
Correct answer: Titrate the fluid rate down toward the minimum that maintains the urine-output target
Titrating the rate down to the minimum that maintains urine output is correct. Burn formulas are starting estimates, and over-resuscitation drives compartment syndromes and pulmonary edema, so fluids are continuously adjusted to the lowest rate that sustains adequate perfusion.
- A child sustains a scald burn from pulling a pot of boiling water onto the chest and one arm. Why must pediatric burn fluid management add maintenance fluid to the resuscitation calculation?
- Maintenance fluid replaces the need to estimate TBSA
- Children require less total fluid than the formula provides
- Children have higher baseline fluid and glucose needs that the resuscitation formula does not cover
- Children do not develop burn shock
Correct answer: Children have higher baseline fluid and glucose needs that the resuscitation formula does not cover
Children having higher baseline fluid and glucose needs is correct. Pediatric patients have limited glycogen stores and proportionally greater maintenance requirements, so a glucose-containing maintenance fluid is given in addition to the weight- and TBSA-based resuscitation volume.
- In hemorrhagic shock classification, which class is typically the first to show a measurable drop in systolic blood pressure?
- Class I
- Class II
- Class III
- Class IV
Correct answer: Class III
Class III is typically the first to show a measurable drop in systolic blood pressure. In Class I and Class II, compensatory vasoconstriction maintains systolic pressure despite blood loss, so a falling systolic reading marks the transition to Class III decompensation and the need for aggressive resuscitation.
- A young trauma patient maintains a normal blood pressure despite an estimated 18 percent blood loss, showing only mild tachycardia and slightly narrowed pulse pressure. Why can blood pressure remain normal at this stage of hemorrhagic shock?
- Blood loss this small has no physiologic effect
- Compensatory vasoconstriction and tachycardia preserve systolic pressure
- The kidneys immediately replace lost volume
- The heart stops responding to volume loss
Correct answer: Compensatory vasoconstriction and tachycardia preserve systolic pressure
Compensatory vasoconstriction and tachycardia preserve systolic pressure at this stage. In early hemorrhagic shock, sympathetic activation constricts vessels and raises heart rate, maintaining blood pressure until losses exceed roughly 30 percent, which is why a normal pressure can mask substantial bleeding in young patients.
- Which early hemorrhagic shock finding reflects compensatory catecholamine release before blood pressure falls?
- Bradycardia
- Warm flushed skin
- Narrowing pulse pressure from a rising diastolic pressure
- Increased urine output
Correct answer: Narrowing pulse pressure from a rising diastolic pressure
A narrowing pulse pressure from a rising diastolic pressure reflects early compensation. Catecholamine-driven vasoconstriction raises the diastolic pressure, narrowing the gap between systolic and diastolic readings, an early clue to hemorrhage that appears before the systolic pressure itself declines.
- A trauma patient is profoundly hypotensive, has a barely palpable pulse, negligible urine output, and confusion after major blood loss. This corresponds to which class of hemorrhagic shock?
- Class IV
- Class I
- Class II
- Class III
Correct answer: Class IV
This corresponds to Class IV hemorrhagic shock. Class IV reflects greater than 40 percent blood volume loss with profound hypotension, a weak or absent peripheral pulse, negligible urine output, and depressed mentation. It is immediately life-threatening and demands rapid hemorrhage control and transfusion.
- During resuscitation of a massively bleeding trauma patient, which ratio of packed red blood cells to fresh frozen plasma to platelets defines a balanced massive transfusion protocol?
Correct answer: 1:1:1
A 1:1:1 ratio defines a balanced massive transfusion protocol. Administering packed red blood cells, fresh frozen plasma, and platelets in equal proportions approximates whole blood, helping correct dilutional coagulopathy and improve survival in exsanguinating trauma patients.
- What is the primary rationale for delivering plasma and platelets alongside red cells in a 1:1:1 massive transfusion protocol rather than red cells alone?
- To prevent and treat dilutional coagulopathy
- To increase oxygen-carrying capacity only
- To reduce the total number of units needed
- To avoid the need for hemorrhage control
Correct answer: To prevent and treat dilutional coagulopathy
The rationale is to prevent and treat dilutional coagulopathy. Replacing only red cells dilutes clotting factors and platelets, worsening bleeding; a balanced 1:1:1 approach restores coagulation capacity along with oxygen-carrying cells, more closely mimicking whole blood in massive hemorrhage.
- A patient receiving a massive transfusion develops perioral tingling, muscle tremors, and a prolonged QT interval. Which electrolyte disturbance from the transfusion is the most likely cause?
- Hyperkalemia
- Hypernatremia
- Hyperphosphatemia
- Hypocalcemia from citrate binding
Correct answer: Hypocalcemia from citrate binding
Hypocalcemia from citrate binding is the most likely cause. Citrate used to anticoagulate stored blood binds ionized calcium during rapid massive transfusion, producing tremors, perioral tingling, and QT prolongation, so calcium is monitored and replaced during large-volume resuscitation.
- During a massive transfusion, the nurse anticipates monitoring for which combination of metabolic complications?
- Hypercalcemia and hypokalemia
- Hypocalcemia, hyperkalemia, and hypothermia
- Hypernatremia and hyperglycemia
- Hyperphosphatemia and alkalosis
Correct answer: Hypocalcemia, hyperkalemia, and hypothermia
The nurse anticipates hypocalcemia, hyperkalemia, and hypothermia. Citrate binds calcium, stored red cells leak potassium, and rapidly infusing cold blood lowers body temperature, so warming the products and monitoring these values are essential during massive transfusion.
- A trauma patient with uncontrolled internal hemorrhage and no head injury is managed with a strategy that targets a lower-than-normal blood pressure until surgical control. This approach is known as what?
- Aggressive crystalloid loading
- Maximal pressor support
- Permissive hypotension
- Forced diuresis
Correct answer: Permissive hypotension
This approach is known as permissive hypotension. Deliberately tolerating a lower systolic pressure before definitive hemorrhage control limits clot disruption and dilution of clotting factors, reducing further blood loss until the source can be surgically addressed.
- Why is permissive hypotension generally avoided in a trauma patient with a suspected traumatic brain injury?
- It increases the risk of pulmonary edema
- It causes hypothermia
- Adequate blood pressure is needed to maintain cerebral perfusion pressure
- It worsens extremity fractures
Correct answer: Adequate blood pressure is needed to maintain cerebral perfusion pressure
Permissive hypotension is avoided in suspected brain injury because adequate blood pressure is needed to maintain cerebral perfusion pressure. A low systolic pressure can drop cerebral perfusion below safe thresholds and worsen secondary brain injury, so a higher pressure target is preferred when the brain is at risk.
- What is the underlying physiologic goal of permissive hypotension during the pre-hemorrhage-control phase of trauma resuscitation?
- To preserve a forming clot and limit dilutional coagulopathy
- To maximize urine output
- To raise intracranial pressure
- To eliminate the need for blood products
Correct answer: To preserve a forming clot and limit dilutional coagulopathy
The goal is to preserve a forming clot and limit dilutional coagulopathy. Avoiding high pressures and large crystalloid volumes prevents 'popping the clot' and diluting clotting factors, keeping the patient bleeding more slowly until definitive surgical control is achieved.
- Damage control resuscitation in major trauma centers on which combined set of priorities?
- High-volume crystalloid, normothermia neglect, and delayed surgery
- Maximal sedation, diuresis, and antibiotic loading
- Permissive hypotension in all patients regardless of injury
- Hemorrhage control, balanced blood product transfusion, and prevention of the lethal triad
Correct answer: Hemorrhage control, balanced blood product transfusion, and prevention of the lethal triad
Damage control resuscitation centers on hemorrhage control, balanced blood product transfusion, and prevention of the lethal triad. This modern framework minimizes crystalloids, uses balanced ratios of blood products, and actively prevents hypothermia, acidosis, and coagulopathy while bleeding is controlled.
- A core principle of damage control resuscitation is to minimize crystalloid fluids in favor of blood products. What is the main reason for limiting crystalloids in major hemorrhage?
- Crystalloids are too expensive
- Crystalloids dilute clotting factors and worsen coagulopathy
- Crystalloids cause hyperkalemia
- Crystalloids raise intracranial pressure
Correct answer: Crystalloids dilute clotting factors and worsen coagulopathy
Crystalloids are limited mainly because they dilute clotting factors and worsen coagulopathy. Large-volume crystalloid resuscitation also contributes to hemodilution, acidosis, and edema, so damage control resuscitation prioritizes blood products that restore both volume and clotting capacity.
- In damage control surgery, an abbreviated initial operation controls hemorrhage and contamination, then the patient returns to the ICU before definitive repair. What is the primary purpose of this staged approach?
- To reduce operating room costs
- To avoid the need for blood transfusion
- To delay all surgery indefinitely
- To allow correction of hypothermia, acidosis, and coagulopathy before definitive repair
Correct answer: To allow correction of hypothermia, acidosis, and coagulopathy before definitive repair
The primary purpose is to allow correction of hypothermia, acidosis, and coagulopathy before definitive repair. Limiting the first operation prevents pushing a physiologically exhausted patient past their limits, giving time in the ICU to restore normal physiology before completing the repair.
- The lethal triad of trauma that perpetuates uncontrolled bleeding consists of which three components?
- Hypothermia, acidosis, and coagulopathy
- Hypertension, alkalosis, and thrombosis
- Hyperthermia, hyperkalemia, and hypoglycemia
- Hypoxia, hypovolemia, and hypocalcemia
Correct answer: Hypothermia, acidosis, and coagulopathy
The lethal triad consists of hypothermia, acidosis, and coagulopathy. These three derangements reinforce one another in major trauma, with cold and acidotic conditions impairing clotting enzymes, which worsens bleeding and deepens shock, creating a deadly self-perpetuating cycle.
- How does hypothermia contribute to the lethal triad in a bleeding trauma patient?
- It increases platelet production
- It impairs clotting enzyme function and platelet activity
- It raises body temperature reflexively
- It improves oxygen delivery to tissues
Correct answer: It impairs clotting enzyme function and platelet activity
Hypothermia impairs clotting enzyme function and platelet activity. The coagulation cascade depends on temperature-sensitive enzymes, so a cold patient clots poorly, which increases bleeding, deepens shock and acidosis, and intensifies the lethal triad, making active warming a resuscitation priority.
- A massively injured trauma patient is becoming acidotic and coagulopathic. Which nursing intervention most directly interrupts the lethal triad?
- Apply warming blankets and warm all infused fluids and blood
- Aggressively cool the patient
- Withhold blood products
- Hyperventilate the patient to a low carbon dioxide level
Correct answer: Apply warming blankets and warm all infused fluids and blood
Applying warming measures and warming all infused fluids and blood most directly interrupts the lethal triad. Preventing and reversing hypothermia preserves clotting function, which helps break the cycle of coagulopathy and acidosis that perpetuates hemorrhage in major trauma.
- Within what time window from injury should tranexamic acid be administered to reduce mortality in a bleeding trauma patient, according to current trauma guidance?
- Within 12 hours
- Within 24 hours
- Anytime in the first week
- Within 3 hours
Correct answer: Within 3 hours
Tranexamic acid should be given within 3 hours of injury. Administering this antifibrinolytic early reduces hemorrhage-related mortality, whereas giving it beyond the 3-hour window has been associated with no benefit and potential harm, so timely administration is emphasized.
- What is the mechanism by which tranexamic acid reduces bleeding in trauma patients?
- It stimulates platelet production
- It inhibits fibrinolysis by blocking plasminogen activation
- It vasoconstricts arteries directly
- It replaces clotting factors
Correct answer: It inhibits fibrinolysis by blocking plasminogen activation
Tranexamic acid inhibits fibrinolysis by blocking plasminogen activation. By preventing plasmin from breaking down formed clots, it stabilizes clots already at the bleeding site, helping control hemorrhage when given early in major trauma resuscitation.
- A trauma patient arrives 5 hours after a major hemorrhagic injury, and the team is considering tranexamic acid. Based on current evidence, why is the team hesitant to start it now?
- Tranexamic acid is only for head injuries
- It cannot be given with blood products
- It must be given orally for trauma
- Late administration beyond 3 hours offers no proven benefit and may increase harm
Correct answer: Late administration beyond 3 hours offers no proven benefit and may increase harm
The team is hesitant because late administration beyond 3 hours offers no proven benefit and may increase harm. The mortality benefit of tranexamic acid is tied to early dosing within 3 hours of injury, so starting it well past that window is not supported and could worsen outcomes.
- In the primary survey of a trauma patient, what does the sequence ABCDE stand for?
- Alertness, Bleeding, Compression, Drugs, Evacuation
- Airway, Breathing, Circulation, Disability, Exposure
- Assessment, Bandaging, Cervical, Drainage, Elevation
- Airway, Bleeding, Cardiac, Drugs, Examination
Correct answer: Airway, Breathing, Circulation, Disability, Exposure
In the primary survey, ABCDE stands for Airway, Breathing, Circulation, Disability, and Exposure. This standardized sequence prioritizes the most immediately life-threatening problems first, ensuring a patent airway and adequate ventilation and circulation are addressed before neurologic and full-body assessment.
- While performing the primary survey, the nurse identifies a patient with stridor and a compromised airway. According to the ABCDE framework, what should be addressed before assessing circulation?
- Airway and breathing
- Disability
- Exposure
- Detailed history
Correct answer: Airway and breathing
Airway and breathing should be addressed before circulation. The ABCDE sequence is hierarchical, so a threatened airway and inadequate ventilation take precedence; securing the airway and ensuring oxygenation must occur before moving on to evaluate and support circulation.
- During the disability portion of the primary survey, the nurse performs which focused assessment?
- A rapid neurologic check including level of consciousness and pupils
- Full head-to-toe skin inspection
- Auscultation of all lung fields
- Detailed wound irrigation
Correct answer: A rapid neurologic check including level of consciousness and pupils
The disability portion involves a rapid neurologic check including level of consciousness and pupils. This brief assessment, often using the Glasgow Coma Scale and pupillary response, screens for neurologic compromise before the exposure step, deferring the detailed head-to-toe exam to the secondary survey.
- In the exposure step of the primary survey, the nurse fully undresses the patient. What complementary action must accompany this to prevent harm?
- Apply cold packs to all extremities
- Restrict all intravenous fluids
- Keep the patient warm to prevent hypothermia
- Leave the patient uncovered for the entire assessment
Correct answer: Keep the patient warm to prevent hypothermia
Keeping the patient warm to prevent hypothermia must accompany exposure. Fully undressing the patient to find all injuries causes rapid heat loss, so warm blankets and a warm environment are used immediately afterward to avoid contributing to the lethal triad.
- A rural hospital receives a trauma patient who exceeds its resource capabilities. Which continuum-of-care action best serves this patient?
- Initiate timely transfer to a higher-level trauma center
- Hold the patient locally indefinitely
- Discharge the patient home
- Delay any transfer until all imaging is repeated
Correct answer: Initiate timely transfer to a higher-level trauma center
Initiating timely transfer to a higher-level trauma center best serves this patient. When a facility lacks the resources to definitively manage an injury, prompt interfacility transfer along the trauma continuum ensures access to the specialized care the patient needs without harmful delay.
- After completing the primary survey and resuscitation, the trauma team performs a head-to-toe secondary survey. What is the primary purpose of this assessment?
- To re-secure the airway
- To discharge the patient
- To replace the need for imaging
- To identify all injuries not found during the primary survey
Correct answer: To identify all injuries not found during the primary survey
The secondary survey aims to identify all injuries not found during the primary survey. Once life threats are addressed, a systematic head-to-toe examination and history uncover additional injuries, ensuring no significant trauma is missed before definitive management planning.
- The AMPLE history obtained during the secondary survey gathers which categories of information?
- Allergies, Medications, Past history, Last meal, Events of injury
- Airway, Mobility, Pulse, Lungs, Edema
- Alertness, Mood, Pain, Level, Exposure
- Assessment, Monitoring, Procedures, Labs, Evaluation
Correct answer: Allergies, Medications, Past history, Last meal, Events of injury
AMPLE gathers Allergies, Medications, Past medical history, Last meal, and Events surrounding the injury. This concise mnemonic structures the trauma history during the secondary survey, capturing information that influences anesthesia, medication choices, and understanding of the mechanism of injury.
- A nurse uses the AVPU scale during rapid trauma assessment and finds the patient responds only to painful stimuli. Which AVPU category does this represent?
- Alert
- Verbal
- Pain
- Unresponsive
Correct answer: Pain
Responding only to painful stimuli corresponds to the Pain category of AVPU. This rapid scale ranks responsiveness as Alert, responds to Verbal stimuli, responds to Pain, or Unresponsive, offering a quick measure of consciousness during initial trauma evaluation.
- Which trauma scoring tool combines Glasgow Coma Scale, systolic blood pressure, and respiratory rate to predict survival probability?
- Rule of Nines
- Parkland formula
- Revised Trauma Score
- APGAR score
Correct answer: Revised Trauma Score
The Revised Trauma Score combines the Glasgow Coma Scale, systolic blood pressure, and respiratory rate. By weighting these physiologic variables, it estimates injury severity and survival probability, supporting triage and quality-improvement comparisons across trauma populations.
- During trauma resuscitation, which solution is the preferred initial crystalloid for restoring intravascular volume in most settings?
- Warmed isotonic balanced crystalloid such as lactated Ringer's
- Dextrose 5 percent in water
- Hypotonic 0.45 percent saline
- Sterile water
Correct answer: Warmed isotonic balanced crystalloid such as lactated Ringer's
A warmed isotonic balanced crystalloid such as lactated Ringer's is preferred for initial volume restoration. Isotonic fluids stay in the intravascular space better than hypotonic or dextrose solutions, and warming them helps prevent hypothermia, though blood products are favored in major hemorrhage.
- A trauma patient in hemorrhagic shock has received 2 liters of crystalloid with only a transient response and ongoing bleeding. What does this transient response indicate the patient most urgently needs?
- Additional large-volume crystalloid only
- Oral rehydration
- A diuretic
- Blood products and definitive hemorrhage control
Correct answer: Blood products and definitive hemorrhage control
A transient response indicates the patient most urgently needs blood products and definitive hemorrhage control. A patient who improves only briefly with crystalloid is still actively bleeding, so continued crystalloid alone is inadequate; transfusion and source control are the priorities.
- When uncrossmatched blood is required immediately for a bleeding trauma patient before a type and crossmatch can be completed, which red cell type is administered?
- Type AB positive
- Type A positive
- Type B negative
- Type O negative
Correct answer: Type O negative
Type O negative red cells are administered as the universal donor when uncrossmatched blood is needed immediately. Lacking A, B, and Rh D antigens, O negative minimizes the risk of an acute hemolytic reaction while definitive typing and crossmatching are pending.
- A trauma patient receiving a blood transfusion suddenly develops fever, flank pain, hypotension, and dark urine. What complication should the nurse suspect first?
- Mild allergic reaction
- Circulatory overload
- Acute hemolytic transfusion reaction
- Citrate toxicity
Correct answer: Acute hemolytic transfusion reaction
An acute hemolytic transfusion reaction should be suspected first. Fever, flank pain, hypotension, and hemoglobinuria after starting blood suggest ABO incompatibility with red cell destruction; the nurse must stop the transfusion immediately, maintain the IV with saline, and support the patient.
- A massively transfused trauma patient develops hypothermia partly from rapidly infused cold blood. Which intervention best addresses this transfusion-related cause?
- Slow the transfusion to room temperature exposure
- Withhold further blood products
- Cool the room to match the blood temperature
- Use a blood warmer during rapid transfusion
Correct answer: Use a blood warmer during rapid transfusion
Using a blood warmer during rapid transfusion best addresses this cause. Infusing large volumes of refrigerated blood quickly lowers core temperature, so warming the products preserves clotting function and helps prevent the hypothermia component of the lethal triad.
- Which laboratory value is most useful for assessing the adequacy of resuscitation and tissue perfusion in a trauma patient with shock?
- Serum sodium
- Serum albumin
- Serum lactate
- Serum calcium
Correct answer: Serum lactate
Serum lactate is most useful for assessing resuscitation adequacy and tissue perfusion. Elevated lactate reflects anaerobic metabolism from hypoperfusion, and a downward trend during resuscitation indicates improving oxygen delivery, making lactate clearance a valuable endpoint in shock management.
- A trauma patient's base deficit is worsening despite ongoing fluids. How should the nurse interpret this trend in the context of resuscitation?
- Ongoing tissue hypoperfusion and inadequate resuscitation
- Perfusion is improving
- The patient is over-resuscitated
- It reflects a laboratory error and can be ignored
Correct answer: Ongoing tissue hypoperfusion and inadequate resuscitation
A worsening base deficit indicates ongoing tissue hypoperfusion and inadequate resuscitation. An increasing base deficit signals persistent anaerobic metabolism from poor perfusion, alerting the team that the patient is still in shock and may require blood products and hemorrhage control.
- A bleeding trauma patient with a pelvic fracture is being prepared for a temporary aortic balloon to limit distal hemorrhage before surgery. This intervention is known by which name?
- ECMO
- CRRT
- REBOA
- IABP for cardiac support
Correct answer: REBOA
This intervention is known as REBOA, resuscitative endovascular balloon occlusion of the aorta. A balloon inflated in the aorta temporarily reduces blood flow below the occlusion to control noncompressible torso or pelvic hemorrhage while the patient is moved toward definitive surgical control.
- A nurse is teaching new staff about preventing hypothermia in trauma patients. Which bundle of measures best maintains normothermia during resuscitation?
- Cool intravenous fluids and an air-conditioned room
- Warm fluids, warm blankets, a warmed environment, and minimal exposure time
- Ice packs and continuous undressing
- Antipyretics and cooling blankets
Correct answer: Warm fluids, warm blankets, a warmed environment, and minimal exposure time
Warm fluids, warm blankets, a warmed environment, and minimal exposure time best maintain normothermia. Trauma patients lose heat rapidly during exposure and resuscitation, so actively warming infusions and surroundings while limiting uncovered time protects clotting function and counters the lethal triad.
- In a trauma patient with the lethal triad, how does acidosis specifically impair hemostasis?
- It increases platelet aggregation
- It thickens the blood
- It impairs the function of clotting factor enzymes
- It raises fibrinogen levels
Correct answer: It impairs the function of clotting factor enzymes
Acidosis impairs the function of clotting factor enzymes. A low pH reduces the activity of the coagulation cascade's enzymes, slowing clot formation and worsening hemorrhage, which links acidosis to coagulopathy and hypothermia in the self-reinforcing lethal triad.
- A trauma patient remains hypotensive after appropriate blood product resuscitation, yet bleeding has been surgically controlled. Which assessment best guides the next step?
- Assume resuscitation is complete and stop monitoring
- Reassess for ongoing occult hemorrhage and other shock causes
- Immediately discharge the patient
- Administer a diuretic to raise blood pressure
Correct answer: Reassess for ongoing occult hemorrhage and other shock causes
Reassessing for ongoing occult hemorrhage and other shock causes best guides the next step. Persistent hypotension after controlled bleeding and resuscitation suggests missed bleeding sources or a second mechanism such as obstructive or neurogenic shock, prompting renewed evaluation rather than premature closure.
- During the circulation step of the primary survey, the nurse identifies external hemorrhage. What is the most appropriate immediate action?
- Apply direct pressure to control the bleeding
- Order a CT scan before any intervention
- Elevate the head of the bed
- Administer antibiotics
Correct answer: Apply direct pressure to control the bleeding
Applying direct pressure to control the bleeding is the most appropriate immediate action. In the circulation step, controlling obvious external hemorrhage takes priority, as direct pressure rapidly limits blood loss while other access and resuscitation measures are established.
- A trauma patient is in Class II hemorrhagic shock. Based on classification, what is the most appropriate initial resuscitation strategy when bleeding is controlled?
- Immediate massive transfusion regardless of response
- Crystalloid resuscitation with close reassessment
- No intervention is needed
- Vasopressors as the first-line treatment
Correct answer: Crystalloid resuscitation with close reassessment
Crystalloid resuscitation with close reassessment is appropriate for controlled Class II hemorrhage. Class II reflects roughly 15 to 30 percent loss with compensation, so balanced fluids and monitoring of response often suffice, while escalation to blood products is reserved for those who do not respond or continue bleeding.
- A trauma team activates the massive transfusion protocol. What is the main advantage of having this protocol predefined and ready?
- It eliminates the need to control bleeding
- It avoids the need to monitor laboratory values
- It enables rapid, balanced delivery of blood products without delays
- It replaces the primary survey
Correct answer: It enables rapid, balanced delivery of blood products without delays
The main advantage is rapid, balanced delivery of blood products without delays. A predefined protocol coordinates the blood bank and team to provide red cells, plasma, and platelets in balanced ratios quickly, preventing the dangerous lag that worsens coagulopathy in exsanguinating trauma.
- A trauma patient in hemorrhagic shock without head injury is managed with permissive hypotension. Which approximate systolic blood pressure target is commonly used until hemorrhage is controlled?
- Around 60 mmHg
- Around 120 mmHg
- Around 80 to 90 mmHg
- Around 140 mmHg
Correct answer: Around 80 to 90 mmHg
A systolic target of roughly 80 to 90 mmHg is commonly used in permissive hypotension. This range supports vital organ perfusion while avoiding the higher pressures that can dislodge clots and increase bleeding, balancing perfusion against hemorrhage until surgical control is achieved.
- A trauma patient receiving many units of stored blood develops peaked T waves and muscle weakness. Which transfusion-related electrolyte problem should the nurse suspect?
- Hypocalcemia
- Hyponatremia
- Hypomagnesemia
- Hyperkalemia from stored red cells
Correct answer: Hyperkalemia from stored red cells
Hyperkalemia from stored red cells should be suspected. Potassium leaks from red cells during storage, so massive transfusion can raise serum potassium, producing peaked T waves and weakness; this complication is monitored alongside hypocalcemia and hypothermia during large-volume transfusion.
- Which statement best describes how damage control resuscitation differs from older high-volume crystalloid resuscitation strategies?
- It relies primarily on large crystalloid boluses
- It emphasizes early balanced blood products and limits crystalloid
- It avoids hemorrhage control
- It targets supranormal blood pressures
Correct answer: It emphasizes early balanced blood products and limits crystalloid
Damage control resuscitation emphasizes early balanced blood products and limits crystalloid. Unlike older strategies that pushed large crystalloid volumes and normal pressures, it minimizes crystalloid to reduce coagulopathy and edema, prioritizing blood products and hemorrhage control while preventing the lethal triad.
- A trauma nurse is asked why early tranexamic acid is part of damage control resuscitation. What is the best explanation?
- It replaces lost red cells
- It warms the patient
- It corrects acidosis directly
- It reduces clot breakdown and helps lower hemorrhage-related mortality
Correct answer: It reduces clot breakdown and helps lower hemorrhage-related mortality
Early tranexamic acid reduces clot breakdown and helps lower hemorrhage-related mortality. As an antifibrinolytic given within 3 hours, it stabilizes clots and complements balanced transfusion and hemorrhage control, fitting within the damage control resuscitation strategy.
- A patient with class IV hemorrhagic shock is unresponsive to initial transfusion and has uncontrolled abdominal bleeding. Which continuum-of-care decision is most appropriate?
- Continue crystalloid alone and observe
- Proceed urgently to operative hemorrhage control with ongoing balanced transfusion
- Delay surgery until vital signs normalize
- Discharge to a lower level of care
Correct answer: Proceed urgently to operative hemorrhage control with ongoing balanced transfusion
Proceeding urgently to operative hemorrhage control with ongoing balanced transfusion is most appropriate. A patient in profound shock with uncontrolled internal bleeding will not stabilize without source control, so definitive surgery cannot wait for normalized vitals; resuscitation continues alongside the operation.
- During interfacility transfer of a critically injured trauma patient, which handoff practice best supports continuity of care?
- Use a structured handoff communicating mechanism, injuries, interventions, and current status
- Provide only the patient's name on arrival
- Withhold the medication record
- Skip reporting vital sign trends
Correct answer: Use a structured handoff communicating mechanism, injuries, interventions, and current status
A structured handoff communicating mechanism, injuries, interventions, and current status best supports continuity. Standardized transfer reports ensure the receiving team understands what happened, what was done, and the patient's trajectory, reducing errors and omissions across the trauma continuum.
- A trauma patient develops oozing from IV sites and prolonged clotting times after major hemorrhage and resuscitation. Which condition along the lethal triad should the nurse recognize?
- Trauma-induced coagulopathy
- Hypercoagulability
- Polycythemia
- Hyperthermia
Correct answer: Trauma-induced coagulopathy
Trauma-induced coagulopathy should be recognized. Diffuse oozing and prolonged clotting times after major injury reflect consumption and dysfunction of clotting factors, a key element of the lethal triad that is worsened by hypothermia and acidosis and treated with balanced blood products and warming.
- During the breathing assessment of the primary survey, the nurse must rapidly identify and treat which immediately life-threatening condition?
- A simple ankle fracture
- A minor laceration
- A tension pneumothorax causing hemodynamic compromise
- Mild dehydration
Correct answer: A tension pneumothorax causing hemodynamic compromise
A tension pneumothorax causing hemodynamic compromise must be rapidly identified and treated during the breathing step. Although it is a thoracic injury, recognizing and decompressing it is a core part of the breathing assessment because it impairs ventilation and circulation and can rapidly cause death.
- A trauma patient who responds to verbal commands but is drowsy is categorized on the AVPU scale as which level, and what does this imply about consciousness?
- Alert; fully oriented
- Pain; responds only to noxious stimuli
- Verbal; responsive to spoken stimuli but with reduced consciousness
- Unresponsive; no response to any stimulus
Correct answer: Verbal; responsive to spoken stimuli but with reduced consciousness
This patient is categorized as Verbal on the AVPU scale, implying reduced consciousness with preserved response to spoken stimuli. The Verbal level sits below Alert, signaling some neurologic depression that warrants close monitoring and may prompt a more detailed Glasgow Coma Scale assessment.
- Why is balanced 1:1:1 transfusion preferred over giving large volumes of packed red blood cells with minimal plasma in an exsanguinating trauma patient?
- Red cells alone fail to replace clotting factors and worsen bleeding
- Red cells alone raise blood pressure too quickly
- Plasma is contraindicated in trauma
- Platelets cause hypothermia
Correct answer: Red cells alone fail to replace clotting factors and worsen bleeding
Red cells alone fail to replace clotting factors and worsen bleeding, so a balanced 1:1:1 approach is preferred. Transfusing predominantly red cells dilutes plasma factors and platelets, deepening coagulopathy, whereas balanced ratios restore both oxygen-carrying capacity and clotting components.
- A trauma patient with controlled hemorrhage now shows a falling lactate and improving base deficit during resuscitation. How should the nurse interpret these trends?
- Perfusion is improving and resuscitation is progressing appropriately
- Resuscitation is failing
- The patient is bleeding more
- The patient needs immediate surgery
Correct answer: Perfusion is improving and resuscitation is progressing appropriately
Falling lactate and an improving base deficit indicate that perfusion is improving and resuscitation is progressing appropriately. These trends show restored oxygen delivery and reduced anaerobic metabolism, serving as endpoints that the resuscitation strategy is working in a trauma patient.
- A nurse explains the rationale for permissive hypotension to a colleague. Which patient is the best candidate for this strategy?
- A patient with a severe traumatic brain injury
- An older adult with a known intracranial bleed
- A patient with a spinal cord injury and neurogenic shock
- A young patient with penetrating torso hemorrhage and no head injury
Correct answer: A young patient with penetrating torso hemorrhage and no head injury
A young patient with penetrating torso hemorrhage and no head injury is the best candidate. Permissive hypotension limits clot disruption before surgical control and is appropriate when there is no brain or spinal cord injury requiring higher perfusion pressures, making this patient ideal.
- A bleeding trauma patient is started on the massive transfusion protocol. To minimize transfusion-associated hypothermia, which step should accompany rapid product delivery?
- Warm all blood products before infusion
- Refrigerate the products at the bedside
- Infuse the blood as cold as possible
- Alternate blood with iced saline
Correct answer: Warm all blood products before infusion
Warming all blood products before infusion should accompany rapid delivery. Cold products infused quickly drop the core temperature and impair clotting, so using fluid and blood warmers preserves normothermia and supports coagulation during massive transfusion.
- A trauma patient with controlled bleeding remains acidotic, cold, and coagulopathic after surgery. Which combined intervention strategy most directly targets the lethal triad in the ICU?
- Cooling, restricting fluids, and withholding blood products
- Active rewarming, correcting acidosis through perfusion, and replacing clotting factors
- Hyperventilation and diuresis
- Vasodilation and sedation alone
Correct answer: Active rewarming, correcting acidosis through perfusion, and replacing clotting factors
Active rewarming, correcting acidosis through restored perfusion, and replacing clotting factors most directly targets the lethal triad. Reversing hypothermia and acidosis while supporting coagulation breaks the self-perpetuating cycle, which is the postoperative goal of damage control resuscitation.
- During the primary survey, which problem is addressed first when a patient simultaneously has an obstructed airway and external bleeding?
- The external bleeding
- The airway obstruction
- A detailed neurologic exam
- Wound dressing
Correct answer: The airway obstruction
The airway obstruction is addressed first. The ABCDE hierarchy places airway above circulation because without a patent airway and oxygenation, controlling bleeding will not save the patient; the airway is secured before turning to hemorrhage control.
- A trauma patient transitions from the emergency department to the operating room and then to the ICU. What does this progression illustrate about trauma care?
- That trauma care occurs at a single point in time
- That the ICU replaces the operating room
- That trauma care is a continuum requiring coordinated handoffs across phases
- That triage is unnecessary after arrival
Correct answer: That trauma care is a continuum requiring coordinated handoffs across phases
This progression illustrates that trauma care is a continuum requiring coordinated handoffs across phases. Effective management depends on smooth transitions and clear communication from the field through the emergency department, operating room, and ICU to optimize outcomes.
- A nurse calculates that a trauma patient has likely lost about 35 percent of blood volume based on heart rate, blood pressure, mental status, and urine output. Which resuscitation priority follows from this Class III assessment?
- Oral fluids and observation
- Initiation of blood product transfusion and rapid hemorrhage source control
- Discharge with follow-up
- Diuretic therapy
Correct answer: Initiation of blood product transfusion and rapid hemorrhage source control
Initiation of blood product transfusion and rapid hemorrhage source control follows from a Class III assessment. Loss of roughly 30 to 40 percent of blood volume usually requires blood rather than crystalloid alone, along with urgent identification and control of the bleeding source.
- A trauma patient who initially responded to fluids becomes hypotensive again within minutes. How should the nurse classify this fluid response and what does it suggest?
- A responder with controlled bleeding
- A transient responder suggesting ongoing hemorrhage
- A nonresponder requiring no further care
- A normal physiologic fluctuation
Correct answer: A transient responder suggesting ongoing hemorrhage
This is a transient responder, suggesting ongoing hemorrhage. A patient who improves with fluids but quickly deteriorates again is still bleeding, indicating the need for blood products and urgent source control rather than continued crystalloid alone.
- A trauma patient with multiple injuries requires definitive imaging, but is hemodynamically unstable with ongoing bleeding. Which continuum-of-care principle guides the team's decision?
- Complete all imaging before any intervention
- Imaging always takes priority over hemorrhage control
- Unstable patients with uncontrolled hemorrhage go to definitive control rather than waiting for full imaging
- Defer resuscitation until imaging is finished
Correct answer: Unstable patients with uncontrolled hemorrhage go to definitive control rather than waiting for full imaging
Unstable patients with uncontrolled hemorrhage proceed to definitive control rather than waiting for full imaging. The continuum-of-care principle prioritizes life-saving hemorrhage control for the hemodynamically unstable, since delaying for comprehensive imaging can be fatal when the patient is actively exsanguinating.
- A trauma nurse documents the Revised Trauma Score on arrival and again after resuscitation. What is the main clinical value of tracking such trauma scores over time?
- To monitor changes in physiologic status and guide ongoing care decisions
- To assign legal liability
- To replace bedside assessment
- To determine billing codes
Correct answer: To monitor changes in physiologic status and guide ongoing care decisions
Tracking trauma scores over time monitors changes in physiologic status and guides ongoing care decisions. Comparing scores at intervals reveals whether the patient is improving or deteriorating, supporting triage, escalation, and quality improvement across the continuum of trauma care.
- A patient in compensated hemorrhagic shock has a normal blood pressure but cool, pale skin, mild tachycardia, and slightly decreased urine output. What does this combination indicate the nurse should do?
- Reassure the patient that everything is normal
- Recognize early shock and intervene before decompensation
- Wait for the blood pressure to fall before acting
- Reduce monitoring frequency
Correct answer: Recognize early shock and intervene before decompensation
The nurse should recognize early shock and intervene before decompensation. Cool, pale skin, tachycardia, and reduced urine output reflect compensatory mechanisms masking blood loss while the blood pressure is still normal, so early recognition and treatment prevent progression to decompensated shock.
- A trauma patient is bleeding from a major pelvic injury, and the team initiates damage control resuscitation. Which set of actions reflects this approach most completely?
- Large crystalloid boluses, normal pressure target, and delayed transfusion
- Diuresis, cooling, and observation
- Pressors alone with no blood products
- Early balanced transfusion, permissive hypotension, hemorrhage control, and prevention of the lethal triad
Correct answer: Early balanced transfusion, permissive hypotension, hemorrhage control, and prevention of the lethal triad
Early balanced transfusion, permissive hypotension, hemorrhage control, and prevention of the lethal triad reflect damage control resuscitation most completely. This integrated approach restores clotting capacity, avoids clot-disrupting pressures, controls the bleeding source, and protects against hypothermia, acidosis, and coagulopathy.
- A trauma patient presents with roughly 10 percent blood volume loss, normal vital signs, and only mild anxiety. Which class of hemorrhagic shock does this represent, and what resuscitation is typically required?
- Class III; immediate massive transfusion
- Class I; often manageable with oral or modest crystalloid replacement
- Class IV; emergency surgery
- Class II; vasopressor infusion
Correct answer: Class I; often manageable with oral or modest crystalloid replacement
This represents Class I hemorrhagic shock, often manageable with oral or modest crystalloid replacement. Loss of up to about 15 percent of blood volume produces minimal vital sign changes because compensation is robust, so aggressive transfusion is usually unnecessary when bleeding is controlled.
- What is the primary reason fresh frozen plasma is included early in a balanced massive transfusion rather than withheld until laboratory results return?
- Waiting for labs delays correction of coagulopathy in rapidly bleeding patients
- Plasma carries oxygen better than red cells
- Plasma is cheaper than red cells
- Plasma prevents hypothermia directly
Correct answer: Waiting for labs delays correction of coagulopathy in rapidly bleeding patients
Waiting for labs delays correction of coagulopathy in rapidly bleeding patients, so plasma is given early. In exsanguinating trauma, clotting factor depletion outpaces laboratory turnaround, making empiric balanced plasma administration necessary to maintain hemostasis rather than waiting for confirmatory values.
- A trauma patient with uncontrolled hemorrhage is receiving permissive hypotension. Which assessment finding would signal that the strategy must be abandoned in favor of higher pressure targets?
- New signs of inadequate brain or vital organ perfusion such as confusion
- A stable heart rate
- A controlled, slow capillary refill
- Mild thirst
Correct answer: New signs of inadequate brain or vital organ perfusion such as confusion
New signs of inadequate brain or vital organ perfusion, such as confusion, signal that permissive hypotension must be abandoned. The low pressure target is only acceptable while vital organs remain perfused; emerging end-organ hypoperfusion means the benefit no longer outweighs the harm, requiring higher targets.
- During the exposure step of the primary survey, a nurse rolls the patient to inspect the back. Which principle ensures this is done safely in a trauma patient?
- Move the patient quickly without assistance
- Flex the spine to improve visualization
- Maintain spinal precautions with a coordinated log roll
- Defer the back exam entirely
Correct answer: Maintain spinal precautions with a coordinated log roll
Maintaining spinal precautions with a coordinated log roll ensures the back is inspected safely. Until spinal injury is excluded, the head, neck, and trunk must move as a unit during exposure to find posterior injuries without risking displacement of an unstable spine.
- A trauma patient remains profoundly hypothermic during resuscitation despite warm blankets. Which additional measure most effectively raises core temperature in severe cases?
- Removing all coverings to allow air circulation
- Cooling the extremities
- Withholding warmed blood products
- Warmed intravenous fluids and active warming devices
Correct answer: Warmed intravenous fluids and active warming devices
Warmed intravenous fluids and active warming devices most effectively raise core temperature in severe cases. Passive blankets alone may be insufficient, so warming all infusions and using forced-air or other active warming counteracts the hypothermia that drives coagulopathy in the lethal triad.
- A trauma patient receiving multiple units of blood develops crackles, dyspnea, and jugular venous distension shortly after rapid transfusion. Which complication is most likely?
- Acute hemolytic reaction
- Transfusion-associated circulatory overload
- Citrate toxicity
- Hyperkalemia
Correct answer: Transfusion-associated circulatory overload
Transfusion-associated circulatory overload is most likely. Rapid infusion of large volumes can overwhelm the circulation, producing pulmonary congestion, dyspnea, and jugular venous distension; this differs from hemolytic or metabolic complications and is managed by slowing the rate and supporting oxygenation.
- A trauma patient with controlled bleeding has adequate urine output of about 0.5 mL per kilogram per hour, clearing lactate, and improving mentation. How should the nurse interpret these resuscitation endpoints?
- Resuscitation is inadequate and bleeding continues
- Perfusion is being restored and resuscitation is on target
- The patient is over-resuscitated and needs diuresis
- These findings are unrelated to perfusion
Correct answer: Perfusion is being restored and resuscitation is on target
These findings indicate perfusion is being restored and resuscitation is on target. Adequate urine output, lactate clearance, and improving mental status together reflect restored organ perfusion, serving as meaningful endpoints that the trauma resuscitation is achieving its goals.
- A trauma patient in Class II hemorrhagic shock has lost an estimated 25 percent of blood volume. Which vital sign pattern is most consistent with this class before decompensation?
- Tachycardia with a normal systolic pressure and narrowed pulse pressure
- Bradycardia with hypertension
- Profound hypotension with absent pulses
- No change in heart rate or blood pressure
Correct answer: Tachycardia with a normal systolic pressure and narrowed pulse pressure
Tachycardia with a normal systolic pressure and narrowed pulse pressure is most consistent with Class II hemorrhagic shock. Compensatory mechanisms raise heart rate and diastolic pressure while preserving systolic pressure, narrowing the pulse pressure as an early warning before systolic decompensation occurs.
- A trauma patient is transferred from a Level III to a Level I trauma center for specialized care. Which information is most essential to communicate during the transfer handoff?
- Only the patient's insurance details
- The receiving nurse's schedule
- The transport vehicle's mileage
- Mechanism of injury, injuries identified, interventions performed, and current hemodynamic status
Correct answer: Mechanism of injury, injuries identified, interventions performed, and current hemodynamic status
Mechanism of injury, injuries identified, interventions performed, and current hemodynamic status are most essential. This clinical information allows the receiving Level I team to continue care seamlessly, anticipate needs, and avoid duplicative or delayed interventions across the trauma continuum.
- A nurse anticipates calcium replacement during a large-volume massive transfusion. What is the physiologic basis for this anticipated need?
- Stored blood is high in calcium
- Red cells consume calcium for oxygen transport
- Transfusion raises calcium to toxic levels
- Citrate in stored blood binds the patient's ionized calcium
Correct answer: Citrate in stored blood binds the patient's ionized calcium
The basis is that citrate in stored blood binds the patient's ionized calcium. The anticoagulant citrate chelates calcium during rapid transfusion, lowering ionized calcium and impairing coagulation and cardiac function, so calcium replacement is anticipated and guided by monitoring.
- A trauma team applies damage control resuscitation principles by limiting the first operation to hemorrhage and contamination control. What is this initial abbreviated surgery best described as?
- Definitive reconstructive surgery
- Elective repair
- Cosmetic revision
- Damage control surgery
Correct answer: Damage control surgery
This initial abbreviated surgery is best described as damage control surgery. It rapidly controls bleeding and contamination without completing definitive repair, allowing the patient to be resuscitated and physiologically stabilized in the ICU before returning for full reconstruction.
- A trauma patient is being actively resuscitated, and the nurse warms the room, warms all fluids, and limits exposure time. Which component of the lethal triad is this bundle primarily aimed at preventing?
- Hyperkalemia
- Hypothermia
- Alkalosis
- Hyperglycemia
Correct answer: Hypothermia
This bundle is primarily aimed at preventing hypothermia. Warming the environment and fluids while limiting uncovered time conserves body heat, and avoiding hypothermia preserves clotting enzyme function, helping break the lethal triad of hypothermia, acidosis, and coagulopathy.
- A small rural hospital with an on-call orthopedic surgeon is contacted by a Level I trauma center asking it to accept a patient who needs services the rural hospital can provide and has capacity for. Under EMTALA, what is the rural hospital's obligation as the receiving facility?
- It may refuse because EMTALA applies only to the transferring hospital
- It must accept only if the patient's insurance is verified in advance
- It must accept the transfer if it has the specialized capability and capacity to treat the patient
- It may accept only patients who arrive by ground ambulance
Correct answer: It must accept the transfer if it has the specialized capability and capacity to treat the patient
Accepting the transfer when capability and capacity exist is the EMTALA duty of a receiving facility. The law's reverse-dumping provision requires hospitals with specialized capabilities to accept appropriate transfers of unstable patients when they have the capacity to treat them. EMTALA binds receiving as well as transferring hospitals, insurance verification cannot be a precondition, and mode of arrival is irrelevant.
- An on-call neurosurgeon listed on a trauma center's call schedule fails to respond and come in to treat an unstable head-injured patient who requires emergency surgery. Under EMTALA, what is the most accurate characterization of this situation?
- There is no violation because EMTALA does not address physician on-call responsibilities
- EMTALA liability falls only on the nurse who paged the physician
- The on-call physician's failure to respond can constitute an EMTALA violation involving the hospital's stabilization duty
- EMTALA applies only after the patient is admitted as an inpatient
Correct answer: The on-call physician's failure to respond can constitute an EMTALA violation involving the hospital's stabilization duty
An unresponsive on-call specialist can trigger an EMTALA violation tied to the stabilization duty. EMTALA requires hospitals to maintain an on-call list of specialists and to provide stabilizing treatment within their capability, so a specialist's refusal or failure to appear implicates the hospital's obligation. The statute squarely addresses on-call coverage, liability is not assigned to the paging nurse, and the duty arises before inpatient admission.
- A trauma program director must decide which professional, rather than governmental, body conducts the external on-site review that confirms a hospital satisfies published trauma resource criteria. Which organization performs this verification in the United States?
- The American College of Surgeons Committee on Trauma
- The Centers for Medicare and Medicaid Services
- The Board of Certification for Emergency Nursing
- The Occupational Safety and Health Administration
Correct answer: The American College of Surgeons Committee on Trauma
The American College of Surgeons Committee on Trauma conducts the external verification review. Its Verification, Review, and Consultation program sends reviewers on site to confirm a center meets the resource and process standards for its level. CMS administers Medicare conditions of participation, the certifying body for the TCRN credentials nurses rather than facilities, and OSHA regulates workplace safety, none of which verify trauma centers.
- A regional health system is evaluating whether to seek Level III versus Level IV trauma center status for a community hospital. Which statement best reflects the role typically expected of a Level III trauma center?
- It conducts trauma research and trains surgical residents as its primary mission
- It provides only initial evaluation and immediate transfer with no surgical capability
- It provides prompt assessment, resuscitation, surgery, and stabilization, with transfer agreements for patients needing higher-level care
- It is restricted to outpatient injury follow-up and cannot resuscitate trauma patients
Correct answer: It provides prompt assessment, resuscitation, surgery, and stabilization, with transfer agreements for patients needing higher-level care
Prompt assessment, resuscitation, surgery, and stabilization with transfer agreements describes a Level III center. Level III facilities have general surgery and resuscitation capability and maintain transfer agreements with Level I or II centers for complex injuries. Research and residency education are Level I expectations, evaluation-and-transfer-only with no surgery describes a lower level, and trauma centers are not limited to outpatient follow-up.
- While reviewing its performance improvement and patient safety process, a trauma program identifies a 'loop closure' step. Within trauma quality improvement, what does loop closure mean?
- Verifying that a corrective action taken in response to an identified problem actually resolved it
- Documenting an event in the registry and taking no further action
- Closing the patient's chart at discharge
- Ending peer review once a death is classified as nonpreventable
Correct answer: Verifying that a corrective action taken in response to an identified problem actually resolved it
Loop closure means confirming a corrective action actually resolved the identified problem. The performance improvement cycle requires that after a corrective action such as a protocol change or education, the program re-measures to verify the issue was fixed and the improvement is sustained. Merely logging an event, closing a chart, or classifying a death does not demonstrate that the underlying problem was corrected.
- A trauma program is establishing levels of tiered review for events flagged in its performance improvement process. Which type of event most appropriately warrants the highest level, a multidisciplinary peer review committee?
- A routine case with no identified variances in care
- A minor documentation omission with no effect on the patient
- A potentially preventable death or major complication involving possible provider-level care issues
- A scheduled equipment maintenance log entry
Correct answer: A potentially preventable death or major complication involving possible provider-level care issues
A potentially preventable death or major complication with possible provider issues warrants multidisciplinary peer review. The highest tier of trauma performance improvement is reserved for serious events requiring physician and team-level judgment about whether care was appropriate. Routine cases without variances, trivial documentation omissions, and maintenance logs are handled at lower review levels or administratively.
- A trauma nurse documents a patient's injuries and care in the medical record after a motor vehicle crash. Which documentation practice best meets professional and legal standards?
- Summarize the chart from memory at the end of the shift to save time
- Include personal opinions about who was at fault in the crash
- Record objective, factual, and timely entries describing observations and interventions
- Leave blank spaces in flow sheets to fill in later if needed
Correct answer: Record objective, factual, and timely entries describing observations and interventions
Objective, factual, and timely documentation meets professional and legal standards. The trauma record must accurately capture assessments, interventions, and patient responses contemporaneously because it serves clinical, legal, and quality purposes. Charting from memory hours later, inserting opinions about fault, and leaving blanks to backfill all undermine the record's reliability and create legal exposure.
- A trauma nurse caring for a gunshot wound victim must maintain the chain of custody for a bullet recovered during care. Which action correctly maintains the chain of custody?
- Hand the bullet directly to a family member for safekeeping
- Place the bullet loosely in the patient's belongings bag
- Document each person who handles the evidence and obtain a signature at every transfer
- Rinse the bullet to remove tissue before labeling it
Correct answer: Document each person who handles the evidence and obtain a signature at every transfer
Documenting and obtaining a signature at every transfer maintains the chain of custody. An unbroken, signed record of who possessed the evidence and when preserves its admissibility in court. Releasing it to family, tossing it into a belongings bag, or rinsing it destroys integrity and breaks the custodial chain, rendering the evidence unreliable.
- After a particularly distressing pediatric trauma death, several staff members are visibly affected. Which professional practice resource is specifically designed to help the team process the emotional impact of a critical incident?
- An immediate disciplinary review of each team member
- A reassignment of the involved staff to non-clinical duties permanently
- A billing audit of the resuscitation supplies used
- A critical incident stress debriefing or peer support program
Correct answer: A critical incident stress debriefing or peer support program
A critical incident stress debriefing or peer support program addresses the emotional impact on staff. These structured interventions help trauma teams process acute stress, reduce burnout, and support psychological recovery after disturbing events. Discipline, permanent reassignment, and billing audits do not address the staff's emotional needs and may compound the harm of the experience.
- A health system adopts a 'just culture' approach to a trauma medication error. Which principle best describes how just culture handles such an event?
- It punishes any clinician involved in an error to deter mistakes
- It distinguishes between human error, at-risk behavior, and reckless conduct when responding to an event
- It assigns no accountability under any circumstances
- It focuses solely on identifying which individual to blame
Correct answer: It distinguishes between human error, at-risk behavior, and reckless conduct when responding to an event
Distinguishing human error, at-risk behavior, and reckless conduct defines the just culture response. Just culture supports clinicians who make honest mistakes and addresses system flaws, coaches at-risk behavior, and reserves sanctions for reckless conduct. Blanket punishment, total absence of accountability, and pure individual blame all contradict this balanced, systems-oriented model.
- A trauma center activates its disaster plan after a multi-vehicle pileup produces numerous casualties exceeding immediate resources. During mass casualty triage, what is the overarching professional goal that distinguishes it from routine emergency care?
- Treating the most critically injured patient first regardless of resource limits
- Providing the greatest good for the greatest number of patients with available resources
- Delaying all care until every patient has a complete diagnostic workup
- Prioritizing patients strictly by order of arrival
Correct answer: Providing the greatest good for the greatest number of patients with available resources
Achieving the greatest good for the greatest number defines mass casualty triage. When demand overwhelms resources, the ethical and operational priority shifts from maximal individual care to allocating limited resources for population benefit. Always treating the single most critical patient first, awaiting full workups, and first-come ordering all fail the population-focused goal of disaster triage.
- Within the hospital incident command structure activated during a mass casualty event, what is the primary professional benefit of using a standardized framework such as the Hospital Incident Command System?
- It provides clear roles, chain of command, and common terminology for coordinated response
- It eliminates the need for triage during a disaster
- It transfers all clinical decision-making to outside agencies
- It guarantees that no patient will require transfer to another facility
Correct answer: It provides clear roles, chain of command, and common terminology for coordinated response
Clear roles, chain of command, and common terminology are the core benefit of a standardized incident command system. The Hospital Incident Command System organizes the response so personnel understand their assignments and communicate consistently across the event. It does not remove the need for triage, surrender clinical authority to outside agencies, or eliminate the possibility of transfers.
- A charge nurse plans to delegate tasks during a busy trauma shift. According to professional delegation principles, which task is most appropriate to delegate to unlicensed assistive personnel?
- Performing the initial trauma assessment of a newly arrived patient
- Administering an intravenous analgesic
- Interpreting changes in the patient's neurologic status
- Obtaining a set of routine vital signs on a stable monitored patient
Correct answer: Obtaining a set of routine vital signs on a stable monitored patient
Obtaining routine vital signs on a stable patient is appropriate to delegate to unlicensed assistive personnel. Delegation principles permit assigning standardized tasks with predictable outcomes that do not require nursing judgment. Initial assessment, medication administration, and interpreting neurologic changes all require the licensed nurse's clinical judgment and cannot be delegated.
- An unconscious adult is brought to the trauma bay after a fall and requires immediate life-saving surgery, but no family or surrogate is available to provide consent. Under the professional and legal framework for consent, what principle authorizes treatment?
- Treatment cannot proceed until a court order is obtained
- Implied consent permits emergency treatment necessary to prevent death or serious harm
- The nurse must sign the consent form on the patient's behalf
- Treatment must wait until the patient regains capacity to consent
Correct answer: Implied consent permits emergency treatment necessary to prevent death or serious harm
Implied consent authorizes emergency treatment to prevent death or serious harm. The emergency doctrine presumes a reasonable person would consent to life-saving care when they cannot and no surrogate is available. Awaiting a court order or the patient's recovery would cause preventable harm, and a nurse cannot legally sign consent on the patient's behalf.
- A trauma patient is determined to have suffered an irreversible loss of all brain function. Within professional practice, what is the appropriate understanding of brain death for the nurse coordinating subsequent steps?
- Brain death is a temporary state from which recovery is expected with continued support
- Brain death is the legal and clinical equivalent of death once formally determined by established criteria
- Brain death can be declared by the bedside nurse without physician examination
- Brain death requires the absence of a heartbeat before it can be declared
Correct answer: Brain death is the legal and clinical equivalent of death once formally determined by established criteria
Once formally determined, brain death is the legal and clinical equivalent of death. Established criteria for cessation of all brain function, including the brainstem, allow a physician determination that the patient is legally dead, which then guides decisions about support and donation referral. Brain death is not reversible, is not nurse-declared, and does not require absent cardiac activity.
- A trauma nurse cares for a dying patient whose injuries are nonsurvivable and whose goals shift toward comfort. Which action best reflects the professional integration of palliative care principles in trauma?
- Withholding all pain medication to avoid hastening death
- Continuing maximally aggressive interventions despite the goals of care
- Excluding the family from the bedside during the dying process
- Providing symptom management, comfort, and family support consistent with the patient's goals of care
Correct answer: Providing symptom management, comfort, and family support consistent with the patient's goals of care
Symptom management, comfort, and family support aligned with goals of care reflect palliative principles in trauma. Palliative care can run alongside or follow trauma resuscitation to relieve suffering and support the family when cure is no longer the aim. Withholding appropriate analgesia, persisting with aggressive interventions against the goals, and barring family all conflict with patient-centered end-of-life practice.
- A trauma patient who does not speak English needs to understand a proposed procedure. Which practice best upholds professional standards for communication and informed consent?
- Use a qualified medical interpreter rather than a family member to convey the information
- Ask the patient's young child to translate to save time
- Proceed without interpretation since the procedure is urgent
- Provide written English materials and assume comprehension
Correct answer: Use a qualified medical interpreter rather than a family member to convey the information
Using a qualified medical interpreter best upholds communication and consent standards. Trained interpreters ensure accurate, impartial, and confidential transfer of medical information, which is essential for valid informed consent and culturally competent care. Relying on a child, skipping interpretation, or assuming comprehension of English materials risk miscommunication and invalidate truly informed consent.
- When a trauma patient arrives by ambulance, the prehospital crew gives a verbal handoff to the receiving nurse. Which professional practice best ensures a safe transfer of care during this handoff?
- Accepting the patient without a report to speed the transfer
- Relying only on the written run sheet reviewed later
- Documenting the report only after the patient is discharged
- Using a structured handoff format that conveys mechanism, findings, interventions, and response
Correct answer: Using a structured handoff format that conveys mechanism, findings, interventions, and response
A structured handoff conveying mechanism, findings, interventions, and response ensures a safe transfer of care. Standardized communication tools reduce omissions and align the prehospital and hospital teams on the patient's status and needs. Accepting a patient with no report, deferring to a later-reviewed run sheet, or delaying documentation all introduce gaps that threaten continuity and safety.
- A combative trauma patient with a head injury is placed in physical restraints for safety. Which professional practice requirement applies to the use of restraints?
- Restraints may remain in place indefinitely once applied
- Restraints require a provider order, ongoing monitoring, and use of the least restrictive effective option
- Restraints eliminate the need to reassess the patient's behavior
- Restraints may be applied solely for staff convenience
Correct answer: Restraints require a provider order, ongoing monitoring, and use of the least restrictive effective option
A provider order, ongoing monitoring, and the least restrictive effective option are required for restraint use. Regulatory and professional standards mandate that restraints protect the patient, are time-limited, are continuously reassessed, and are discontinued as soon as safely possible. Indefinite application, skipping reassessment, and using restraints for convenience violate patient rights and safety standards.
- A trauma nurse must notify a family that their loved one has died from injuries sustained in a crash. Which approach best reflects professional standards for death notification?
- Use vague euphemisms so the family can interpret the outcome themselves
- Deliver the news in a private setting, use clear language, and provide compassionate support
- Inform the family in a public waiting area for efficiency
- Delegate the notification to security personnel
Correct answer: Deliver the news in a private setting, use clear language, and provide compassionate support
Delivering the news privately with clear language and compassionate support reflects professional death notification standards. Best practice calls for a quiet setting, direct and unambiguous wording such as the word died, and ongoing emotional support and resources for the family. Euphemisms create confusion, public notification violates privacy and dignity, and security staff are not appropriate to deliver such news.
- A second-year trauma nurse feels personally responsible and emotionally distressed after being involved in a patient adverse event, a state sometimes called the 'second victim' phenomenon. What is the appropriate professional response from the organization?
- Provide peer support and resources to help the involved clinician cope and recover
- Ignore the nurse's distress because only the patient is the victim
- Immediately terminate the nurse to protect the organization
- Require the nurse to continue working without acknowledgment of the event
Correct answer: Provide peer support and resources to help the involved clinician cope and recover
Providing peer support and recovery resources is the appropriate response to the second victim phenomenon. Clinicians involved in adverse events can suffer significant emotional harm, and supportive programs help them cope while sustaining a healthy, safe workforce. Dismissing the distress, punitive termination, and forcing the nurse to push on without support worsen harm and undermine a safety culture.
- A trauma program seeks to strengthen collaboration among nurses, surgeons, respiratory therapists, and social workers during resuscitations. Which professional practice concept describes this coordinated team approach?
- Interprofessional collaborative practice with shared goals and mutual respect
- Independent parallel practice with minimal communication
- A rigid hierarchy in which only the surgeon contributes decisions
- Rotation of staff to prevent any single discipline from participating
Correct answer: Interprofessional collaborative practice with shared goals and mutual respect
Interprofessional collaborative practice with shared goals and mutual respect describes the coordinated team approach. Effective trauma care depends on disciplines communicating, sharing decision-making, and respecting each other's expertise toward common patient goals. Parallel siloed work, surgeon-only decision-making, and excluding disciplines all undermine the teamwork that improves trauma outcomes.
- A trauma center wants to reduce preventable harm by examining processes before an adverse event occurs rather than only after one happens. Which patient safety method is designed for this proactive analysis?
- Root cause analysis conducted only after a sentinel event
- A retrospective billing review
- Waiting for a complaint before evaluating the process
- Failure mode and effects analysis to proactively identify and mitigate potential process failures
Correct answer: Failure mode and effects analysis to proactively identify and mitigate potential process failures
Failure mode and effects analysis is the proactive method for anticipating process failures. This prospective technique maps a process, identifies where and how it could fail, ranks the risks, and implements safeguards before patients are harmed. Root cause analysis is reactive after an event, and billing review or awaiting complaints do not proactively prevent harm.
