OTC Orthopaedic Technologist Certified Upper Extremity Casting 5

Question 1

When removing a cast, the cast saw should be held at what angle relative to the cast surface to minimize injury risk?

Accepted Answer

Perpendicular (90 degrees) to the cast surface

Answer

Holding the saw blade perpendicular to the cast surface and using a plunge-and-lift technique minimizes skin contact and reduces injury risk.

Question 2

Edema management instructions for a patient with a newly applied upper extremity cast should include which primary recommendation?

Accepted Answer

Elevate the extremity above the level of the heart

Answer

Elevating the extremity above the heart reduces hydrostatic pressure and promotes venous and lymphatic drainage, minimizing post-cast swelling.

Question 3

A cylindrical arm cast that is excessively tight will most likely first impair which structure?

Accepted Answer

Venous return from the distal extremity

Answer

Veins are thin-walled and low-pressure, so they are compressed before arteries when external pressure is applied, leading to venous congestion as the first sign.

Question 4

Which of the following is an absolute contraindication to fiberglass casting (as opposed to plaster)?

Accepted Answer

Known allergy to isocyanate or fiberglass resin

Answer

A known allergy to the polyurethane resin or fiberglass components is an absolute contraindication; plaster is used as an alternative.

Question 5

The purpose of applying a 'petaling' technique to a cast edge is to:

Accepted Answer

Prevent skin irritation and breakdown at the cast margin

Answer

Petaling involves folding small strips of moleskin or tape over the rough cast edge to prevent abrasion and skin breakdown at the proximal and distal margins.

Orthopaedic Technologist Certified Test Practice Test

Orthopaedic Technologist Certified Test Practice Test

OTC Orthopaedic Technologist Certified Upper Extremity Casting 5