What is the Rheumatoid factor (RF) test? Why is the test done? Everything around this, that you should know, in this post, and of course our doctors are always there to help you. Just fill in your details in the form below and we will answer all your questions for FREE!
It detects the amount of rheumatoid factor (RF) in the blood.
It is a protein found in the blood when you have an autoimmune disorder. Usually, the immune system builds up antibodies in response to foreign antigens. But RA factor is an antibody that attacks the body’s own cells and tissues by mistake.
It is not generally present in the body, but if you have certain levels or higher levels of RA factor present in the blood it indicates an autoimmune disorder or any other health issue related to RA factor.
It is used to diagnose rheumatoid arthritis and other autoimmune disorders. It also helps in detecting the severity of this condition and monitoring if the treatment is going well.
There are many ways of measurement and antibody titer test is one of them. It measures the number of specific antibodies present in the blood and expresses it in ratio. The normal ratio is 1:80. If it is >1:80, it is considered a positive result.
If you’re having symptoms of rheumatoid arthritis, you should get it done:
A positive result means you have a high level of rheumatoid factor in your blood. It is not a screening test for rheumatoid arthritis, and you may need other tests to diagnose this condition.
It doesn’t always mean you have rheumatoid arthritis, but if it is high in amount that indicates you’re more likely to have a condition linked to rheumatoid factors like:
A negative result means you have little or no rheumatoid factor in your blood. But it doesn’t mean you don’t have rheumatoid arthritis. Some people with rheumatoid arthritis have negative RA factors.
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** The text on this website is sourced from websites like emedicine and/or other verified material by government agencies around the globe along with valuable inputs and additions by our team. The content of this page is proofread and updated by the team of doctors, every once in a while, to provide the most accurate information.
