A nurse is providing teaching for a client who has a new application of a long leg cast. Which of the following instructions should the nurse include?

A. Clients should not insert objects inside the cast, as this can damage the skin, cause infection, or compromise the cast integrity. B. Drainage, foul odor, or increased moisture inside the cast can indicate infection or skin breakdown, which requires immediate provider notification. Early recognition is critical to prevent complications such as osteomyelitis or delayed healing. C. For a long leg cast, elevate the leg above heart level for the first 24–48 hours to reduce swelling and pain. Keeping it flat does not promote optimal circulation and edema control. D. Applying heat directly can damage the cast material and underlying skin, especially if synthetic materials are used. Clients should avoid external heat sources.