What is this test?
This blood test is used for the diagnosis of rheumatoid arthritis. High levels of rheumatoid factor in the blood are most often associated with autoimmune diseases, such as rheumatoid arthritis and Sjogren’s syndrome.
 
Sample required
Blood.
 
Patient preparation
No specific patient preparation protocol is required. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing this test.
 
Turn-around time (How long does it take?)
3 Hours.
 
Basis of the Test
Rheumatoid factor (RF) is an autoantibody, an immunoglobulin M (IgM) protein that is produced by the body’s immune system. Autoantibodies attack a person’s own tissues, mistakenly identifying the tissue as “foreign.”