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42. What is the primary reason for using an air stirrup brace?
A. To provide rigid immobilization of the ankle
B. To allow controlled movement while providing support
C. To completely eliminate weight-bearing
D. To serve as an alternative to surgical fixation

43. Which of the following is an indication for a TLSO brace?
A. Clavicle fracture
B. Lumbar compression fracture
C. Scaphoid fracture
D. Ankle sprain

44. What is the purpose of a walking cast?
A. To allow early weight-bearing while protecting the fracture site
B. To immobilize the hip joint completely
C. To restrict all foot and ankle movement
D. To increase the healing rate of soft tissue injuries

45. A patient reports a burning sensation under their cast. What should they be instructed to do?
A. Ignore it unless pain worsens
B. Use a sharp object to scratch the area
C. Elevate the limb and report to the clinic immediately
D. Apply lotion inside the cast

46. Which of the following is the best initial management for a suspected compartment
syndrome?
A. Elevate the limb and monitor for swelling
B. Loosen or remove the cast immediately and seek emergency care
C. Apply ice and wait for symptoms to resolve
D. Have the patient massage the area to improve circulation

47. Which of the following is NOT a recommended method for cast removal?
A. Using a reciprocating saw
B. Soaking fiberglass in warm water
C. Bivalving the cast before removal
D. Manually breaking the cast without tools

48. When fitting a knee immobilizer, what should be ensured?
A. It allows full range of motion in all directions
B. It maintains the knee in a locked extension position
C. It is loose to allow movement and comfort
D. It only supports the medial aspect of the knee