At a Glance
Why Get Tested?
To help in the diagnosis of rheumatoid arthritis (RA) and differentiate it from other types of arthritis; sometimes to help evaluate the prognosis of a patient with RA
When to Get Tested?
If a patient has joint inflammation and/or undiagnosed or undifferentiated inflammatory polyarthritis (symptoms which may suggest but do not yet meet the criteria of RA) and the doctor suspects RA
A blood sample taken from a vein in your arm
Test Preparation Needed?