rheumatoid factor
noun
: an autoantibody of high molecular weight that reacts against IgG immunoglobulins and is often present in rheumatoid arthritis
Examples of rheumatoid factor in a Sentence
Recent Examples on the Web
It is classified into two subtypes: rheumatoid factor positive (RF) and rheumatoid factor negative.3 RF is an antibody that contributes to long-term inflammation.
—
Lana Barhum, Verywell Health, 26 Sep. 2024
It is divided into two types: rheumatoid factor (RF) negative and RF positive.
—Lana Barhum, Verywell Health, 5 Sep. 2024
Only one type of JIA, polyarticular arthritis positive for IgM rheumatoid factor, is believed to be the same disease as adult RA.
—Lana Barhum, Verywell Health, 5 June 2024
The authors of the report wrote that patients with persistent false-positive results and a history of autoimmune disease with rheumatoid factor may benefit from repeat COVID testing with a different brand of rapid antigen test.
—Alyssa Hui, Verywell Health, 1 Mar. 2024
One of these blood tests measures the amount of rheumatoid factor (RF), a protein produced by your immune system that can attack healthy tissue, in your body.
—Women's Health, 4 Apr. 2023
Nearly everyone who is evaluated for psoriatic arthritis will have their blood tested for rheumatoid factor (RF), a protein produced by the immune system that attacks healthy joints.
—Sara Gaynes Lev, SELF, 30 July 2021
The doctor on call had the presence of mind to do a rheumatoid factor test, which tests for a type of protein that your immune system produces that can attack healthy tissue.
—Natasha Lavender, SELF, 15 Oct. 2020
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Lana Barhum, Verywell Health, 26 Sep. 2024
It is divided into two types: rheumatoid factor (RF) negative and RF positive.
—Lana Barhum, Verywell Health, 5 Sep. 2024
Only one type of JIA, polyarticular arthritis positive for IgM rheumatoid factor, is believed to be the same disease as adult RA.
—Lana Barhum, Verywell Health, 5 June 2024
The authors of the report wrote that patients with persistent false-positive results and a history of autoimmune disease with rheumatoid factor may benefit from repeat COVID testing with a different brand of rapid antigen test.
—Alyssa Hui, Verywell Health, 1 Mar. 2024
One of these blood tests measures the amount of rheumatoid factor (RF), a protein produced by your immune system that can attack healthy tissue, in your body.
—Women's Health, 4 Apr. 2023
Nearly everyone who is evaluated for psoriatic arthritis will have their blood tested for rheumatoid factor (RF), a protein produced by the immune system that attacks healthy joints.
—Sara Gaynes Lev, SELF, 30 July 2021
The doctor on call had the presence of mind to do a rheumatoid factor test, which tests for a type of protein that your immune system produces that can attack healthy tissue.
—Natasha Lavender, SELF, 15 Oct. 2020
Dictionary Entries Near rheumatoid factor
Cite this Entry
“Rheumatoid factor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rheumatoid%20factor. Accessed 22 Dec. 2024.
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