A 69-year-old patient asks the nurse what the difference is between osteoarthritis (OA) and rheumatoid arthritis (RA). Which of the following is the best response by the nurse?
A) "OA is a noninflammatory joint disease. RA is characterized by inflamed, swollen joints.
B) "OA and RA are very similar. OA affects the smaller joints, and RA affects the larger, weight-bearing joints."
C) "OA affects joints on both sides of the body. RA is usually unilateral."
D) "OA is more common in women. RA is more common in men."
Ans: A
Feedback: OA is a degenerative arthritis characterized by the loss of cartilage on the articular surfaces of weight-bearing joints with spur development. RA is characterized by inflammation of synovial membranes and surrounding structures. OA may occur in one hip or knee and not the other, whereas RA commonly affects the same joints bilaterally. RA is more common in women, while OA affects both sexes equally.
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