The Rheumatoid Factor (RA Factor) test, used as a marker for rheumatoid arthritis, is performed on?
- Synovial tissue biopsy
- Blood
- Urine
- Joint fluid aspiration
Explanation
Rheumatoid factor is an autoantibody.
Autoantibodies circulate in the bloodstream.
RA factor is detected using serological tests.
Blood testing is non-invasive and standard.
It helps in diagnosis and monitoring of rheumatoid arthritis.
Last updated question01 March 2026
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