USMLE step 2 Mcq 329:A 34 year old woman with joint pains is suspected of having rheumatoid arthritis

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Question:
A 34 year old woman with joint pains is suspected of having rheumatoid arthritis. She is found to be rheumatoid factor positive. A specific feature of rheumatoid arthritis is

a) subperiosteal thickening
b) marginal articular erosions
c) central articular erosions
d) papular rash
e) pulsus paradoxus


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