Yes it possible : In fact 15-25 percent of all patients with rheumatoid arthritis do not have rheumatoid factor in their serum. There is no conclusive laboratory test which confirms the diagnosis of rheumatoid arthritis.
Answered 11/10/2019
5.6k views
Yes: Have a ccp antibody checked if it has not been already done. It is a more specific test for ra.
Answered 8/25/2013
4.9k views
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