A nurse is reinforcing teaching with a client who is to have a plaster cast applied to his right arm. Which of the following information should the nurse include in the teaching?

Choice A reason: Elevation reduces swelling post-cast application, enhancing circulation. It’s a key step to prevent edema and discomfort in the right arm.Choice B reason: Hair dryers risk burns or softening plaster; scratching tools are safer. This is incorrect and dangerous advice for cast care management.Choice C reason: Covering delays drying, trapping moisture in plaster. It needs air exposure to harden, so this contradicts proper cast maintenance.Choice D reason: Showering after 24 hr wets plaster, weakening it. Casts require protection from water, making this an inaccurate care instruction.