How often should one be tested for rheumatoid arthritis after negative test, though having symptoms?

See a rheumatologist: I would leave this decision up to the rheumatologist. It is known that there are false positive and negative tests for rheumatoid arthritis. It is important that physicians (and patients) understand that we need to take the whole picture into account when making any diagnosis. The physical exam and history is much more important than just following a blood test result.

Arthritis: There are negative test and there are additional tests that may be followed for a now symptomatic person with rheumatoid or infalmmatory as much as at a certain level. Talk to your doctor about this especially if you are taking medications.