Anti-cyclic citrullinated peptide (anti-CCP) antibody testing is particularly useful in the diagnosis of rheumatoid arthritis, with high specificity, presence early in the disease process, and ability to identify patients who are likely to have severe disease and irreversible damage. A blood sample is required to do this test.
It is performed to confirm Rheumatoid Arthritis and also during the treatment and after the treatment of Rheumatoid Arthritis.
The normal level of anti-CCP is less than 20 u/ml. A level above 20 suggests the possibility of RA.
