Which instruction should the practical nurse (PN) reinforce with a client who is scheduled to begin external radiation therapy?

A. Apply nonperfumed moisturizing lotion to the site: Moisturizers are generally avoided during external radiation unless specifically recommended by the radiation team, as they can interfere with radiation delivery and may cause skin irritation during treatment. B. Cleanse the skin to be treated with a mild soap: Using a mild soap helps maintain skin integrity and hygiene without causing irritation. Gentle cleansing prevents infection and prepares the skin for safe radiation exposure, aligning with standard radiation safety instructions. C. After radiation, place ice bags over the treatment area: Applying ice to the irradiated area is contraindicated, as extreme cold can further damage already sensitive skin and exacerbate radiation-induced dermatitis. D. Place a heating pad on low setting to the area: Heat exposure should be avoided on radiation-treated skin because it can increase erythema, irritation, and tissue injury. Careful temperature control is essential to prevent additional skin damage.