Anti-CCP
A more specific antibody marker for rheumatoid arthritis than RF.
What is it
Anti-CCP antibodies target citrullinated proteins. They have been studied as more specific markers for rheumatoid arthritis than rheumatoid factor in published research.
Why it's measured
Anti-CCP has been associated with rheumatoid arthritis with higher specificity than RF in clinical research.
Reference range
Standard laboratory reference
< 20 U/mL
Reference ranges vary by laboratory. Your individual reference range will appear on your test report and should be interpreted by your physician in the context of your overall health profile.
What results may indicate
Elevated
Has been associated with rheumatoid arthritis in published research.
Lower
Is generally considered favorable.
These associations are general. They are not a personal diagnosis or prediction. Discuss your individual results with your physician in the context of your full health profile.
When it's measured
Used alongside RF in evaluating rheumatoid arthritis.
Related markers
Measured in
A complete look at your heart, hormones, metabolism, inflammation, and longevity systems — drawn at Quest or LabCorp, reviewed by a U.S.-licensed physician.
Explore the Apex Panel →This information is for general educational purposes only and is not medical advice. Lab results alone are not intended to diagnose, treat, or cure any condition and do not replace the advice of a healthcare provider. OPTML does not offer medical advice, a diagnosis, medical treatment, or any form of medical opinion.