Why it's doneBy Mayo Clinic staff
A rheumatoid factor test is one of a group of blood tests primarily used to help pinpoint a diagnosis of rheumatoid arthritis. These other tests may include:
- Anti-nuclear antibody (ANA)
- Anti-cyclic citrullinated peptide (anti-CCP) antibodies
- C-reactive protein (CRP)
- Erythrocyte sedimentation rate (ESR, or sed rate)
The amount of rheumatoid factor in your blood may also help your doctor choose the treatment approach that will work best for your situation.
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- Rheumatoid factor. Lab Tests Online. http://labtestsonline.org/understanding/analytes/rheumatoid/tab/glance. Accessed April 4, 2013.
- Shmerling RH. Origin and utility of measurement of rheumatoid factors. http://www.uptodate.com/home. Accessed April 4, 2013.
- Ferri FF. Ferri's Clinical Advisor 2013: 5 Books in 1. Philadelphia, Pa.: Mosby Elsevier; 2012. http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-0-323-08373-7..00002-9&isbn=978-0-323-08373-7&about=true&uniqId=343863096-23. Accessed April 4, 2013.