A nurse is reinforcing teaching with a client diagnosed with osteoarthritis who reports joint pain, swelling and stiffness. Which of the following client statements indicates understanding of the teaching?

A. "I will sleep on a soft mattress.": A soft mattress does not provide adequate joint support and may allow excessive joint flexion, increasing stiffness and discomfort in osteoarthritis. Firm or supportive surfaces help maintain proper spinal alignment and reduce mechanical stress on weight-bearing joints. B. "I will apply a heating pad to make my hands feel better.": Heat therapy promotes vasodilation, increases blood flow, and relaxes periarticular muscles, which can reduce stiffness and improve joint mobility in osteoarthritis. Application of warm compresses or heating pads is particularly beneficial before activity to decrease morning stiffness and enhance range of motion. C. "I will take aspirin on an empty stomach.": Aspirin and other nonsteroidal anti-inflammatory drugs (NSAIDs) can irritate the gastric mucosa by inhibiting prostaglandin synthesis, increasing the risk of gastritis and gastrointestinal bleeding. Taking these medications with food or milk reduces gastric irritation. D. "I will exercise my joints as much as I can when they are inflamed.": During periods of acute inflammation, excessive joint use can worsen pain and tissue irritation. Low-impact, regular exercise is encouraged, but it should be balanced with rest during flare-ups to prevent additional joint stress and exacerbation of symptoms.