A nurse is providing education to a client on how to care for their cast. Which of the following instructions should the nurse include?

Choice A rationale Reporting any change in the color or temperature of the toes on the casted extremity is crucial for detecting potential neurovascular compromise. Changes like pallor, cyanosis, coolness, or increased warmth can indicate impaired circulation, nerve compression, or infection, requiring immediate medical attention to prevent permanent tissue damage or complications. Choice B rationale Keeping the cast dry and avoiding submersion in water is essential to maintain the cast's integrity and prevent skin maceration. A wet cast can soften, lose its supportive capabilities, and become a breeding ground for bacteria or mold, leading to skin irritation, infection, or breakdown. Special covers are available for showering. Choice C rationale Applying lotion or powder to relieve itching under the cast is contraindicated. Lotions can soften the skin, promoting maceration and fungal growth, while powders can cake and irritate the skin. Inserting objects under the cast can also lead to skin abrasions, infections, or foreign body reactions, compromising skin integrity. Choice D rationale Using a warm hair dryer to dry the cast if it gets wet is generally discouraged. While a cool setting might be acceptable for some fiberglass casts, warm or hot air can cause burns to the underlying skin, especially if sensation is impaired or if the cast material is plaster, which can retain heat. Air drying or a fan on a cool setting is preferred.