About Rheumatoid Factor (RA) Test - Arthritis

Rheumatoid Factor (RF) is the autoantibody in rheumatoid arthritis (RA). In addition to RF IgM, raised levels of RF IgA & IgG have been reported in RA patients.

The Rheumatoid Factor (RA) Test - Arthritis is a laboratory test. Your health care provider can explain what it measures and whether it is appropriate for your situation.

Order Rheumatoid Factor (RA) Test - Arthritis in Rhode Island

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How to prepare

Most lab tests require a blood or other sample. Follow any instructions given by your healthcare provider or the testing laboratory. Tell your provider about medications, supplements, or recent illnesses that might affect results.