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 ...

A rheumatoid factor test measures the amount of rheumatoid factor in your blood. Rheumatoid factors are proteins produced by your immune system that can attack healthy tissue in your body. High levels ...

A rheumatoid factor test measures the amount of rheumatoid factor in your blood. Rheumatoid factors are proteins produced by your immune system that can attack healthy tissue in your body. High levels ...

September 7, 2012 — Elevated rheumatoid factor (RF) levels in healthy patients may be a strong predictor of future rheumatoid arthritis (RA), according to data from a prospective cohort study ...

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 ...

Rheumatoid arthritis is an autoimmune disease which occurs when the immune system creates an unwanted response that targets the body's tissues and organs. Normally, a healthy immune system counts on ...

Rheumatoid arthritis (RA) in children is now known as juvenile idiopathic arthritis (JIA). There are several types of JIA, all of which cause joint pain and stiffness. Other symptoms include red or ...