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19. Which DME is adjustable and used post-operatively for knee injuries?
A. Short leg cast
B. Thumb spica splint
C. Hinged knee brace
D. Ankle stirrup brace

20. Which technique is used to alter a cast that is too tight due to swelling?
A. Bi-valving the cast
B. Applying additional fiberglass layers
C. Using heat to reshape the cast
D. Wrapping an elastic bandage over the cast

21. Which patient education point is crucial for those with lower extremity casts?
A. Weight-bearing immediately after cast application
B. Keeping the limb elevated to reduce swelling
C. Using sharp objects to scratch under the cast
D. Removing the cast for daily cleaning

22. Which complication requires immediate evaluation after cast application?
A. Mild itching under the cast
B. Slight odor from the cast material
C. Minimal movement within the cast
D. Numbness or tingling in fingers or toes

23. Which splint is best for immobilizing metacarpal fractures?
A. Ulnar gutter splint
B. Volar wrist splint
C. Posterior long arm splint
D. Ankle stirrup brace

24. Which action is essential when removing a cast with an oscillating saw?
A. Applying continuous pressure
B. Using perpendicular strokes and lifting after each cut
C. Rotating the blade to cut faster
D. Wetting the cast to soften it before removal