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Domain 3: Answer Key

Question Correct
# Answer

1 A Fiberglass sets faster, is more durable, and is lighter than plaster

A stockinette provides a barrier between the skin and casting material,
2 B
reducing irritation

Positioning the wrist in slight extension and neutral ulnar deviation
3 B
maintains proper function and healing

Sugar-tong splints provide circumferential immobilization for distal radius
4 A
and ulna fractures

Splints allow for swelling and can be adjusted, while casts fully encircle the
5 C
limb

The knee is typically positioned in 15-30 degrees of flexion to reduce joint
6 D
stiffness and prevent excessive movement

An ulnar gutter splint is used for immobilizing fractures of the fourth and
7 B
fifth metacarpals, commonly seen in a Boxer's fracture

Two to three layers of padding provide adequate protection for the skin
8 A
while allowing proper cast fit

Bivalving a cast relieves pressure and accommodates swelling, preventing
9 B
complications such as compartment syndrome

The cast saw should be used with minimal pressure and should not remain
10 C
in one area for too long to prevent burns or skin injuries

A posterior short leg splint provides adequate immobilization for distal
11 B
fibula fractures

The Ponseti casting method is the standard of care for treating congenital
12 C
clubfoot

Windowing or trimming a cast can relieve pressure without compromising
13 C
stability

A cam boot with heel lift allows controlled weight-bearing while keeping
14 B
the Achilles tendon in a lengthened position to aid healing