Page 177 - ASOP Orthopedic Casting Manual

Principles of Casting (Supplies, Tools and Safety)

1. What is the primary component of Plaster of Paris?
A) Calcium carbonate
B) Calcium sulfate hemihydrate
C) Magnesium sulfate
D) Sodium bicarbonate

2. Which of the following is NOT an advantage of Plaster of Paris?
A) Highly moldable
B) Provides a smooth finish
C) Affordable
D) Water-resistant

3. What chemical process occurs when Plaster of Paris hardens?
A) Endothermic reaction
B) Combustion reaction
C) Exothermic reaction
D) Polymerization

4. Which of the following listed below is an advantage of fiberglass casting materials?
A) Heavy and durable
B) Water-resistant
C) Affordable and widely available
D) Brittle after drying

5. What is a disadvantage of fiberglass compared to Plaster of Paris?
A) Requires precise handling during application
B) Less durable for active patients
C) Heavier than plaster
D) Non-moldable

6. What is a key benefit of specialized waterproof liners?
A) They are biodegradable.
B) They allow patients to bathe or swim with the cast.
C) They reduce application time.
D) They eliminate the need for padding.

7. Which of the following is considered an eco-friendly casting option?
A) Fiberglass casts
B) Plaster casts
C) Biodegradable casts
D) Breathable casts