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Rheumatoid factor
An "rf" is a blood test used to screen a person for the possibility of several autoimmune diseases, including rheumatoid arthritis. It is important to remember that this is a screening test. A positive result only indicates more testing may be warranted, and a negative result does not rule out ra.
Dr. Arthur Mandelin reviewed this
22 year experience in Rheumatology
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Related questions
A 38-year old asked:
What's rheumatoid factor?
1 doctor answer • 3 doctors weighed in
A 48-year old asked:
What does rheumatoid factor mean?
2 doctor answers • 4 doctors weighed in
A 39-year old asked:
What does rheumatoid factor 5 mean?
1 doctor answer • 2 doctors weighed in
A 39-year old asked:
Can there be changes in rheumatoid factor?
3 doctor answers • 16 doctors weighed in
A 43-year old asked:
What does having high rheumatoid factor mean?
1 doctor answer • 2 doctors weighed in
A 41-year old asked:
How and when can a rheumatoid factor be produced?
2 doctor answers • 3 doctors weighed in
A 31-year old asked:
What does it mean if my rheumatoid factor is 7060?
1 doctor answer • 3 doctors weighed in
A 46-year old asked:
Can you tell me how is rheumatoid factor produced?
1 doctor answer • 1 doctor weighed in
A 40-year old asked:
What does it mean if my rheumatoid factor is positive?
1 doctor answer • 2 doctors weighed in
A 28-year old male asked:
What is the definition or description of: rheumatoid factor?
2 doctor answers • 4 doctors weighed in
A 43-year old asked:
What does a mildly positive rheumatoid factor test indicate?
2 doctor answers • 9 doctors weighed in
A 30-year old female asked:
My rheumatoid factor test results was 8.6 what does that mean?
1 doctor answer • 2 doctors weighed in
A 39-year old asked:
Rheumatoid factor 24 hi ; what diseases to be concerned about?
1 doctor answer • 2 doctors weighed in
A 48-year old female asked:
My rheumatoid factor is out of range 243 h what does this mean?
1 doctor answer • 1 doctor weighed in
A 45-year old asked:
Can there be large changes in rheumatoid factor over a few weeks?
1 doctor answer • 2 doctors weighed in
A 34-year old asked:
What does a positive rheumatoid factor test result mean?
1 doctor answer • 3 doctors weighed in
A 36-year old asked:
Should i be worried if I have a false positive rheumatoid factor?
1 doctor answer • 1 doctor weighed in
A 36-year old female asked:
In lupus, can you rheumatoid factor be negative? Or is it positive?
1 doctor answer • 1 doctor weighed in
A 25-year old female asked:
I did rheumatoid factor test and got 208 ui/ml what does that mean ?
2 doctor answers • 4 doctors weighed in
A 38-year old asked:
Can the presence of rheumatoid factor be caused by a past history of syphilis?
1 doctor answer • 2 doctors weighed in
A 37-year old asked:
Rheumatoid factor in pregnancy?
1 doctor answer • 3 doctors weighed in
A 30-year old asked:
What is postpartum rheumatoid factor?
1 doctor answer • 1 doctor weighed in
A 44-year old asked:
What does rheumatoid factor mean for pregnancy?
1 doctor answer • 4 doctors weighed in
A 37-year old asked:
What are the distinctions between rheumatoid factor test and ANA test?
1 doctor answer • 1 doctor weighed in
A 42-year old asked:
What arthrotide conditions would cause a negative rheumatoid factor in blood panel?
1 doctor answer • 2 doctors weighed in
A 41-year old asked:
Could you have a positive rheumatoid factor and a high ANA but not have any illness?
1 doctor answer • 4 doctors weighed in
A 25-year old female asked:
What does a result of <10 for a rheumatoid factor blood test? Normal range for the test was 0-13.9
1 doctor answer • 4 doctors weighed in
A 25-year old female asked:
If my rheumatoid factor was negative does that mean the ccp blood test will likely be negative as well?
2 doctor answers • 2 doctors weighed in
A 55-year old female asked:
Which medication can reduce rheumatoid factor ? my RF is 201. methotrexate not working I take 15 mg weekly one year
1 doctor answer • 4 doctors weighed in
A 19-year old female asked:
Is a 12 IU/ml rheumatoid factor normal on a 19 year old?
1 doctor answer • 3 doctors weighed in
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