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MediumRheumatologyRheumatoid Arthritis Diagnosisukmlamrcgp aktpanemrcp part 1prescribing safety assessment

A 55-year-old woman presents with a 4-month history of symmetrical pain and stiffness in her hands (MCP and PIP joints) and wrists, worse in the morning and lasting over an hour. Examination reveals swollen, tender MCP and PIP joints bilaterally. What is the most specific blood test for diagnosing rheumatoid arthritis in this context?

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