A nurse is providing client education to an older adult newly diagnosed with osteoarthritis. Which of the following statements should the nurse include?

Choice A rationale The description of the immune system attacking joint tissue refers to rheumatoid arthritis, which is a systemic autoimmune disease characterized by chronic inflammation of the synovium. In contrast, osteoarthritis is primarily a degenerative joint disease caused by the mechanical wear and tear of articular cartilage over time. Providing this information to a patient with osteoarthritis would be scientifically incorrect. Osteoarthritis involves cartilage breakdown and bone spur formation rather than an autoantibody-mediated inflammatory process against the joint. Choice B rationale Morning stiffness in osteoarthritis is typically brief, usually lasting less than 30 minutes, and often resolving within 10 to 20 minutes as the joint moves. This is a key clinical differentiator from rheumatoid arthritis, where morning stiffness often persists for more than one hour. While the statement about 10-20 minutes is common in osteoarthritis, the presence of Heberden nodes is a more definitive physical diagnostic hallmark of the disease process itself, making it a priority for patient education on physical changes. Choice C rationale Sun exposure is a known trigger for flare-ups in systemic lupus erythematosus, an autoimmune condition, but it does not have a direct physiological impact on the progression or symptoms of osteoarthritis. Osteoarthritis is influenced by factors such as age, obesity, repetitive joint stress, and genetics. Advising a patient with osteoarthritis to avoid the sun to prevent joint flares is scientifically unfounded. Education should instead focus on weight management, low-impact exercise, and joint protection techniques to manage symptoms. Choice D rationale Heberden nodes are bony outgrowths that develop at the distal interphalangeal joints of the fingers due to the formation of osteophytes. They are a classic physical finding in osteoarthritis, representing the underlying pathological changes of bone hypertrophy and cartilage loss. Educating an older adult about these nodes helps them understand the visible changes in their hands. These nodes are permanent and signify the degenerative nature of the condition, distinguishing it from the soft tissue swelling seen in other forms.