What Do Rheumatoid Arthritis Blood Test Results Mean?

Written by erik steel
  • Share
  • Tweet
  • Share
  • Email

Unlike other forms of arthritis, there is a blood screening test available for diagnosing rheumatoid arthritis. This test measures the level of antibody found in the blood of people who are suspected of having rheumatoid arthritis.

Other People Are Reading


The blood test checks for the level rheumatoid factor (RF) antibody. This antibody, according to the University of Maryland Medical Center (UMM), builds up in the lining (synovium) of joints.


About 80 per cent of people with rheumatoid arthritis have elevated RF antibody levels, according to the UMM and Medline Plus.


Normal levels of RF antibody are reported as less than 40-60 u/ml or less than 1:80 (1 to 80) titre, according to Medline Plus, while elevated RF antibody is higher than these levels.


Some people with rheumatoid arthritis do not have elevated RF antibody levels, while some people who do not have rheumatoid arthritis do have elevated levels, according to Medline Plus.


When people have arthritic pain on both sides of the body as well as elevated RF antibody, the UMM reports that aggressive rheumatoid arthritis is a likely diagnosis.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the eHow.co.uk site, you consent to the use of cookies. For more information, please see our Cookie policy.