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42. What is the main purpose of a Thomas splint?
A. Immobilize fractures of the femur
B. Provide traction for wrist fractures
C. Stabilize pelvic fractures
D. Support soft tissue injuries

43. What is the primary benefit of early mobilization after orthopedic surgery?
A. Reducing post-operative pain
B. Preventing deep vein thrombosis and pneumonia
C. Decreasing surgical site infections
D. Increasing range of motion instantly

44. Which condition is most likely to require a fasciotomy?
A. Osteomyelitis
B. Compartment syndrome
C. Deep vein thrombosis
D. Sprained ankle

45. What is the best imaging modality for evaluating soft tissue injuries in orthopedic cases?
A. X-ray
B. CT scan
C. MRI
D. Ultrasound

46. What is the most common cause of delayed bone healing?
A. Smoking
B. Proper nutrition
C. Adequate immobilization
D. Physical therapy

47. What is the appropriate response if a patient develops a pressure ulcer under a cast?
A. Keep the cast in place and monitor
B. Apply lotion to the affected area
C. Pad the cast internally
D. Remove the cast immediately

48. Which nerve is at risk of injury with improper placement of an elbow splint?
A. Ulnar nerve
B. Sciatic nerve
C. Radial nerve
D. Axillary nerve