A nurse is providing teaching about nonpharmacological pain management to a client who has osteoarthritis. Which of the following instructions should the nurse include in the teaching?

Rationale: A. Place an ice pack directly on the skin of the affected joints: Ice should never be applied directly to the skin as it can cause frostbite or skin damage. It should be wrapped in a cloth or towel before use. While cold therapy can reduce inflammation and numb pain, safety precautions are essential. B. Limit dietary intake of phosphorus: Phosphorus restriction is not relevant for osteoarthritis management. Dietary modifications for osteoarthritis focus more on maintaining a healthy weight and anti-inflammatory nutrients rather than phosphorus intake. C. Place a large pillow under the knees when sleeping: Placing a large pillow under the knees can hyperflex the joints and increase strain on the knees and hips. Proper positioning involves keeping joints in a neutral or slightly extended position to reduce discomfort and prevent contractures. D. Take a hot shower every day: Heat therapy helps relax muscles, relieve stiffness, and improve joint mobility in clients with osteoarthritis. Warm showers or moist heat applications are effective nonpharmacological interventions for managing pain and promoting comfort.