Final answer:
The correct answer is c) Applying a layer of stockinette before casting. This layer protects the skin from the rough texture of the plaster and improves comfort for the client. The plaster is then wrapped around the arm for support.
Step-by-step explanation:
The correct answer is c) Applying a layer of stockinette before casting. When applying a plaster cast, it is important to first apply a layer of stockinette, which is a soft material that protects the skin from the rough texture of the plaster. This layer provides a barrier between the skin and the plaster, preventing irritation and improving comfort for the client. Once the stockinette is in place, the plaster is then wrapped around the arm, ensuring it is snug but not too tight for support.