A 26-year-old female patient presented to her physician complaining of polyarthritis. The presentation and distribution of her complaint are suggestive of rheumatoid arthritis (RA). Laboratory exam ...

Rheumatoid factor (RF) is a type of antibody, an immune system protein that helps the body fight foreign substances like bacteria and viruses, called antigens. Antibodies, also known as ...

A rheumatoid factor test checks for an antibody that can be a marker for rheumatoid arthritis. It is one part of diagnosis. Not everyone with a positive rheumatoid factor blood test has rheumatoid ...

Polyarthritis affects five or more joints with pain and inflammation. It is most commonly caused by an autoimmune disorder but can also be triggered by infections. Treatment includes medications like ...

Men and women with raised levels of an antibody known as rheumatoid factor in their blood have up to a 26-fold greater long term risk of developing rheumatoid arthritis, finds a study published on bmj ...

When persistent joint pain strikes, the search for answers often leads to a crucial diagnostic tool: the rheumatoid factor test. This relatively quick blood analysis serves as a window into the immune ...