RA Factor (Serum) Test Price and Details
2 labs availableKnown As: Rheumatoid Factor,RF
Last Updated On Friday, April 25, 2025
What is ra factor serum?
The level of rheumatoid factor in your blood is determined by a rheumatoid factor test. Rheumatoid factors are immune system-produced proteins that can harm healthy bodily tissue.
Rheumatoid joint pain and Sjogren's disorder are two immune system ailments that are habitually connected to high blood levels of rheumatoid elements. Rheumatoid variables, be that as it may, can once in a while be tracked down in typical sums in people with immune system diseases, and it can likewise be tracked down in a few solid people.
To detect rheumatoid arthritis, RF testing is typically combined with additional tests. An autoimmune condition known as rheumatoid arthritis (RA) affects your joints and results in pain, swelling, and stiffness. It is a chronic (long-lasting) illness that can have an impact on many organs and lead to further symptoms.
Rheumatoid factors are often associated with autoimmune diseases, but they can also be an indicator of some infections and cancers.
Why is it done?
A single blood test that is chiefly used to assist in the
analysis of rheumatoid arthritis is the rheumatoid factor test. These
additional exams can involve:
- Antibodies against nuclei (ANA)
- Peptide that is anti-cyclic citrullinated (anti-CCP)
antibodies
- Protein C-reactive (CRP)
- Rate of erythrocyte sedimentation (ESR, or sed rate)
Your doctor may select the optimal course of treatment for you based on the level of rheumatoid factor in your blood.
What to anticipate?
A small quantity of blood is together after a vein in your support for a rheumatic factor test. Usually, this only requires a few minutes. A laboratory receives a sample of your blood to conduct tests on.
What results means?
A high level of a rheumatoid factor was found in your blood,
according to a positive rheumatoid factor test result. Autoimmune disease, in
particular rheumatoid arthritis, is strongly correlated with a greater amount
of rheumatoid factor in your blood. Rheumatoid factor levels, however, can also
be increased by many other ailments and illnesses, such as:
- Cancer
- persistent infections
- lung conditions that cause inflammation, including
sarcoidosis
- the disease of several connective tissues
- Sjogren's disorder
- Lupus erythematosus systemic
It is unknown why some healthy people, particularly older persons, test positive for rheumatoid factor. Moreover, some individuals with rheumatoid arthritis will have low blood levels of rheumatoid factor.
What transpires throughout an RF test?
A specialist will take blood from a vein in your arm
utilizing a tiny needle. When the needle has been embedded, a little measure of
blood will be gathered into a test cylinder or vial. At the point when the
needle enters or leaves your body, it could cause some minor stinging. Frequently,
this requires a couple of moments.
Rheumatoid factor tests can be done at home. Everything you need to draw blood from your finger is included in the test kit. Your sample will be mailed to a lab for analysis. It's crucial to inform your healthcare practitioner of the results of any home tests you perform.
Would there be anything I need to do to get ready for the test?
For an RF test, you don't need to make any extra preparations.
Do I need to know anything more about an RF test?
Osteoarthritis is not diagnosed with an RF test.
Osteoarthritis and rheumatoid arthritis both damage the joints, yet they are
quite different conditions. Rheumatoid factors and autoimmunity are not factors
in osteoarthritis. The exact cause of osteoarthritis is unknown. Mostly older
persons are affected.
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