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Can you have Rheumatoid arthiritis with a Rheumatoid factor of 20?

In: Health, Conditions and Diseases, Rheumatoid Arthritis [Edit categories]

Answer:

Yes you can have RA with an Rf of 20. When a doctor sees the symptoms of RA they automatically check for RF because it is a good indicator that that is the problem when taking the symptoms into account , However you don't need any RF at all to be suffering from RA. When this happens it is described as "seronegative rheumatoid arthritis".

An RF of more than 23 units and a titer over than 1:80 can indicate rheumatoid arthritis but may also occur in other conditions.
A negative test result for rheumatoid factor does not necesarily exclude the diagnosis of rheumatoid arthritis.

First answer by Robbb. Last edit by Robbb. Contributor trust: 2273 [recommend contributor ]. Question popularity: 3 [recommend question].

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