A rheumatoid factor test checks for an antibody that can be a marker for rheumatoid arthritis. It is one part of diagnosis. Not everyone with a positive rheumatoid factor blood test has rheumatoid ...
The presence of anti-CCP in a person’s blood may indicate they have rheumatoid arthritis (RA). When the immune system produces anti-CCP, it triggers a series of reactions that damage tissues in the ...