ARRT Domain 8: Extremity Procedures Welcome to your ARRT Domain 8: Extremity Procedures 1. ARRT: Extremity Procedures When performing a lateral knee radiograph, what angle of flexion is recommended to best demonstrate the knee joint space? A. 5-10 degrees B. 20-30 degrees C. 45-55 degrees D. 60-70 degrees None 2. ARRT: Extremity Procedures In a mediolateral oblique (MLO) view of the ankle, which structure is best demonstrated? A. Medial malleolus B. Lateral malleolus C. Talofibular joint D. Tibiotalar joint None 3. ARRT: Extremity Procedures For an AP projection of the toes, what is the recommended central ray (CR) angulation to open the interphalangeal joints? A. 0 degrees B. 10-15 degrees cephalad C. 10-15 degrees caudad D. 20-25 degrees cephalad None 4. ARRT: Extremity Procedures During a wrist arthrography, contrast media is injected into the: A. Radial artery B. Ulnar artery C. Radiocarpal joint D. Distal radioulnar joint None 5. ARRT: Extremity Procedures What is the proper CR placement for a lateral projection of the second digit of the hand? A. Proximal interphalangeal joint B. Distal interphalangeal joint C. Metacarpophalangeal joint D. Carpometacarpal joint None 6. ARRT: Extremity Procedures When imaging the forearm, why is it important to include both the wrist and elbow joints on the radiograph? A. To assist in aligning the prosthetic devices B. To compare bilateral extremities C. To ensure proper bone alignment and detect any injuries D. To provide a reference for surgical planning None 7. ARRT: Extremity Procedures For a PA projection of the hand, how should the fingers be positioned to best demonstrate the interphalangeal and metacarpophalangeal joints? A. Fingers extended and slightly separated B. Fingers flexed and overlapped C. Fingers extended and touching D. Fingers flexed and slightly separated None 8. ARRT: Extremity Procedures What is the appropriate oblique angle for an AP oblique projection of the foot to best demonstrate the cuboid bone? A. 10-15 degrees medially B. 20-30 degrees medially C. 30-40 degrees laterally D. 45-50 degrees medially None 9. ARRT: Extremity Procedures In lateral radiographs of the lower leg (tibia and fibul A. how should the patient's knee and ankle be positioned to ensure true lateral views? A) Knee and ankle flexed at 45 degrees B. Knee extended and ankle at 90 degrees C. Knee flexed at 20-30 degrees and ankle at 90 degrees D. Knee and ankle fully extended None 10. ARRT: Extremity Procedures When performing a scaphoid series with ulnar deviation, what is the primary reason for using a series of angled views? A. To detect scapholunate dissociation B. To visualize the scaphoid without superimposition C. To assess for carpal tunnel syndrome D. To evaluate the distal radius None 11. ARRT: Extremity Procedures For a lateral projection of the patella, what is the recommended degree of knee flexion to ensure optimal visualization? A. 5-10 degrees B. 20-30 degrees C. 45-55 degrees D. 60-70 degrees None 12. ARRT: Extremity Procedures In a Coyle method radiographic view, which structure is best visualized with a 45-degree elbow flexion and 45-degree CR angle directed towards the elbow? A. Olecranon process B. Coronoid process C. Radial head D. Ulnar notch None 13. ARRT: Extremity Procedures During a Robert's view (reverse Caldwell) for the wrist, what is the primary structure being assessed? A. Pisiform bone B. Scaphoid bone C. Lunate bone D. Triquetrum bone None 14. ARRT: Extremity Procedures What is the primary advantage of using a Brewerton view for the fingers? A. It highlights the metacarpophalangeal joints. B. It emphasizes the distal interphalangeal joints. C. It demonstrates the proximal interphalangeal joints. D. It visualizes the sesamoid bones in the hand. None 15. ARRT: Extremity Procedures For the Gaynor-Hart method, what anatomical structure is the focus of the imaging technique? A. Carpal canal B. Scaphoid bone C. Hamate bone D. Ulnar nerve None 16. ARRT: Extremity Procedures When imaging the hip joint in an AP projection, why is internal rotation of the leg recommended? A. To align the femoral neck parallel to the image receptor B. To demonstrate the acetabular structures clearly C. To reduce the appearance of the greater trochanter D. To enhance visualization of the ischial spine None 17. ARRT: Extremity Procedures In a tangential projection for the sesamoid bones of the foot, what is the patient's foot position? A. Dorsiflexed with toes extended B. Plantarflexed with toes extended C. Dorsiflexed with toes flexed D. Plantarflexed with toes flexed None 18. ARRT: Extremity Procedures When performing a lateral scapula view, how should the patient's arm be positioned? A. Abducted 90 degrees B. Adducted across the chest C. Raised above the head D. Hanging naturally by the side None 19. ARRT: Extremity Procedures In an axial calcaneus (plantodorsal) projection, what is the CR angle relative to the sole of the foot? A. 40 degrees cephalad B. 40 degrees caudad C. Perpendicular to the image receptor D. 20 degrees cephalad None 20. ARRT: Extremity Procedures What is the primary reason for using a fan lateral view of the fingers? A. To evaluate the soft tissues B. To assess the joint spaces C. To identify fractures in the phalanges D. To visualize the metacarpals without superimposition None 1 out of 20 Time is Up! Time's up
