What Does It Mean If A Rheumatoid Factor Comprises 20?
Results are usually reported in one of two ways:
- Less than 40-60 u/mL
- Less than 1:80 (1 to 80) titer
A low number (normal result) usually means you do not have rheumatoid arthritis or Sjogren syndrome. However, some people who do have these conditions still have a "normal" or low rheumatoid factor (RF).
Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
What abnormal results mean
High levels of...
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Rheumatoid factor
Source: ADAM Encyclopedia
What the risks areVeins and arteries vary in size from one patient to another and from one side of the body to the other. Obtaining a blood sample... Read more »
Rheumatoid factor
Source: ADAM Encyclopedia
Rheumatoid factor (RF) is a blood test that measures the amount of the RF antibody in the blood.How the test is performedBlood is drawn from a vein,... Read more »
Rheumatoid factor (RF)
Source: ADAM Encyclopedia
ReferencesGoodyear CS, Tighe H, McInnes IB. Rheumatoid factors and other autoantibodies in rheumatoid arthritis. In: Firestein GS, Budd RC, Harris... Read more »
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