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 ...

A rheumatoid factor (RF) test detects rheumatoid factor, a type of antibody (proteins that fight off harmful substances) in your blood. RF antibodies sometimes attack healthy cells and tissues, ...

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 ...

DEAR DR. ROACH: Is there a possibility of having some type of rheumatoid arthritis (RA), even though it doesn’t show up clearly in the blood work? (My CRP level was 0.3, rheumatoid factor was 10, anti ...

Rheumatoid arthritis is one of the most common immune-mediated diseases. Its primary manifestation is inflammatory arthritis characterized by symmetric, polyarticular pain and swelling, typically ...