No R A factor prsent: In the blood test.A seronegative arthritis is an arthritis that is distinguished from rheumatoid arthritis due the absence of rheumatoid factor .The following are types of seronegative arthritis that can be described as rf-factor negative psoriatic arthritis reactive arthritisor reiter's syndrome enteropathic arthritis ankylosing spondylitis undifferentiated seronegative arthritis.
Answered 12/29/2022
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