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7. Which splint is used for thumb fractures and De Quervain's tenosynovitis?
A. Ulnar gutter splint
B. Thumb spica splint
C. Volar wrist splint
D. Posterior long arm splint

8. Which complication can result from a tight circumferential cast?
A. Improved fracture healing
B. Compartment syndrome
C. Reduced pain
D. Faster mobility recovery

9. What is the purpose of a walking boot (CAM boot)?
A. Full immobilization of the knee
B. Immobilization of the elbow
C. Stabilization of the shoulder
D. Partial weight-bearing for foot and ankle injuries

10. Which instruction is critical for patients with a new cast?
A. Remove the cast daily for cleaning
B. Insert objects to scratch under the cast
C. Keep the cast dry and check for circulation issues
D. Tighten the cast if it feels loose

11. Which casting material is preferred for waterproof casts?
A. Plaster
B. Fiberglass with GORE-TEX liner
C. Thermoplastic
D. Elastic bandages

12. Which orthopedic appliance is commonly used for Achilles tendon injuries?
A. Aircast walking boot
B. Knee immobilizer
C. Thumb spica splint
D. Shoulder sling