Doctors may order a cyclic citrullinated peptide (CCP) antibody test and other exams to confirm or rule out a rheumatoid arthritis (RA) diagnosis. A positive CCP antibody test doesn’t necessarily mean ...
A thyroglobulin antibody (TgAb) test looks for certain antibodies that attack the thyroid. The presence of TbAb in high levels may indicate that someone has an autoimmune condition. To conduct a TgAb ...
A TPO antibody test helps diagnose autoimmune thyroid diseases like Hashimoto’s thyroiditis. A positive test result means antibodies are present and may indicate a thyroid condition, but other tests ...