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A member asked:
What is the number to indicate apositvie ra factor have tested @ 19 & 21?
3 doctors weighed in across 2 answers
See details: Both of those values are minimally positive. A positive test is greater than 14. Remember, individuals with RA generally have values above 150. In addition, the ccp antibody is a much more specific test for RA than the rheumatoid factor.
Answered 6/10/2014
4.7k views
These are elevated: Values differ in different labs but a value above 15 is usually positive having a mildly elevated rheumatoid factor however does not mean you have ra. The diagnosis is based on your history and clinical findings on exam anothervtest called ccp antibodies can also be done as an early marker of ra.
Answered 11/25/2013
4.7k views
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