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Rheumatoid arthritis — USMLE Step 3 MCQ

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ModerateInternal Medicine (chronic management)Rheumatoid arthritisUSMLE Step 3

A 44-year-old woman has symmetric swelling and morning stiffness of the MCP and PIP joints for 4 months. Rheumatoid factor and anti-CCP antibodies are positive. X-rays show early erosions. She is not pregnant. Which of the following is the most appropriate next step in management?

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Correct answer: BStart methotrexate with folic acid

Early disease-modifying antirheumatic therapy, typically methotrexate, prevents joint damage in rheumatoid arthritis.

Reference: American College of Rheumatology RA Guideline