When assessing your RA, your doctor looks at different pieces of information:
This information can be put together like a set of clues—building a bigger picture to help you and your doctor better understand your RA.
Anti-CCP is a biomarker that may be found in the blood if the immune system is overactive. It is generally only found in people who have RA. However, not all RA patients have anti-CCP. Around 70% of RA patients are positive for anti-CCP.
Anti-CCP may contribute to inflammation and joint damage seen in RA. Sometimes anti-CCP is called ACPA (anti-citrullinated protein antibody).
Research is still ongoing to understand the role of anti-CCP in RA.
RF is a biomarker that may be found in the blood if the immune system is overactive. It may be found in people who have RA, as well as people who have other diseases (such as lupus, or Sjogren's syndrome). Keep in mind that not all RA patients have RF. Around 75% of RA patients are positive for RF. RF may contribute to inflammation and joint damage seen in RA.
ESR is a biomarker that measures how fast red blood cells sink to the bottom of a test tube. This speed increases when there is inflammation happening in the body. ESR may increase because of inflammation caused by many different things—like an injury, an infection, or a disease like RA. Keep in mind that an ESR test cannot tell you exactly why or where you have inflammation.
CRP is a biomarker that may be found in the blood when there is inflammation happening in the body. CRP may be found because of inflammation caused by many different things—like an injury, an infection, or a disease like RA. Keep in mind that a CRP test cannot tell you exactly why or where you have inflammation.
If you tested positive for anti-CCP and RF, then you’re dual seropositive. If you are, ORENCIA may be right for you.
Anti-CCP, anti-cyclic citrullinated peptide; CRP,
C-reactive protein; ESR, erythrocyte sedimentation rate.