The diagnostic criteria of osteoarthritis versus rheumatoid arthritis
- Describe the diagnostic criteria of osteoarthritis versus rheumatoid arthritis
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Sample Answer
Diagnosing the Difference: Osteoarthritis vs. Rheumatoid Arthritis
Osteoarthritis (OA) and rheumatoid arthritis (RA) are both common types of arthritis, but they have distinct characteristics:
Osteoarthritis (OA):
- Cause: “Wear and tear” degeneration of cartilage in joints, often due to age, overuse, or injury.
- Diagnostic Criteria:
- Pain and stiffness, usually worse with activity and improving with rest.
- Joint tenderness or swelling may be present, but not always.
- X-rays may show narrowing of joint space and bone spurs (osteophytes).
- Blood tests are not specific for OA.