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A member asked:

Doctors, what is the difference between rheumatoid factor test and ana test?

A doctor has provided 1 answer
Dr. Ronald Krauser answered

Different tests.: They test for 2 separate antigens.

Answered 6/9/2014

4k views

Thank

Related Questions

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I had a 1:160 ANA blood result. Further testing for lupus was negative and my rheumatoid factor was normal. What could the high ANA be caused by?

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A member asked:

Can you have RA with a neg rheumatoid factor? I do have a pos ANA and joint pain

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A member asked:

I have slightly elevated ana, iga, igg, and striational muscle antibody. All other rheumatoid tests were negative. Could these mean anything?

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Why Bone pain for 4 months? ANA 1.4, Speckled, Anti-CCP 70 Everything else in Lupus panel at or near normal. No RHeumatoid Factor.

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A member asked:

I just had bloodwork done today. Rheumatoid Factor was lower than 10. CRP inflammatory marker was 6. I cant find a straight answer on what this means? I have chronic pain in my back and was diagnosed with RA/OA even with neg. ANA. What does 6 mean?

3 doctors weighed in across 2 answers

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ANA test positive homogeneous1:80 speckled 1:80 on 11/1.Test repeated on12/27 speckled negative,homogenous 1:320 .All other antibody profile ssa jo-1dsdna rheumatoid factor all negative .Why would Ana homogenous go up but speckled become negative?
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