Anti-cyclic citrullinated peptide antibodies below normal reference values indicate a high probability of not having rheumatoid arthritis.
Anti-cyclic citrullinated peptide antibodies are autoantibodies that are specific for the early diagnosis of rheumatoid arthritis. Normal values vary depending on the clinical test. Usually the reference report will show the normal reference value range, which varies from hospital to hospital and from test to test.
When the anti-cyclic citrullinated peptide antibody is below the normal reference value range is a negative result, indicating a high probability of not having rheumatoid arthritis.
If the patient has joint swelling, deformation, morning stiffness and other uncomfortable symptoms, rheumatoid arthritis can not be ruled out solely on the basis of negative anti-cyclic citrullinated peptide antibody. It is recommended to go to the hospital for examination in time, and the doctor needs to combine clinical symptoms and inflammation indicators to make a comprehensive judgment.
It is recommended that patients go to the hospital in time, under the guidance of the doctor to clarify the diagnosis and treatment.