Factor, rheumatoid

Rheumatoid factor is an antibody that is measurable in the blood. It is commonly used as a blood test for the diagnosis of rheumatoid arthritis. Rheumatoid factor is present in about 80% of adults (but a much lower proportion of children) with rheumatoid arthritis. It is also present in patients with other connective tissue diseases (such as systemic lupus erythematosus) and in some with infectious diseases (such as infectious hepatitis).

Medical dictionary. 2011.

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  • Rheumatoid arthritis — Classification and external resources A hand affected by rheumatoid arthritis ICD 10 M …   Wikipedia

  • Rheumatoid factor — (RF or RhF) is an autoantibody (antibody direct against an organism s own tissues) most relevant in rheumatoid arthritis. It is an antibody against the Fc portion of IgG, which is itself an antibody. RF and IgG join to form immune complexes which …   Wikipedia

  • rheumatoid factor — n an autoantibody of high molecular weight that reacts against immunoglobulins of the class IgG and is often present in rheumatoid arthritis * * * (RF) antibodies directed against antigenic determinants, i.e., Gm, in the Fc region of the IgG… …   Medical dictionary

  • rheumatoid factor — n. an antibody usually found in the blood serum of people with rheumatoid arthritis …   English World dictionary

  • rheumatoid arthritis — n a usu. chronic disease that is considered an autoimmune disease and is characterized esp. by pain, stiffness, inflammation, swelling, and sometimes destruction of joints abbr. RA called also atrophic arthritis compare OSTEOARTHRITIS * * * the… …   Medical dictionary

  • rheumatoid factor — rheumatoid factor. См. ревматоидный фактор. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • factor — 1. One of the contributing causes in any action. 2. One of the components that by multiplication makes up a number or expression. 3. SYN: gene. 4. A vitamin or other essential element. 5. An event, characteristic, or other definable entity that …   Medical dictionary

  • rheumatoid arthritis — Pathol. a chronic autoimmune disease characterized by inflammation of the joints, frequently accompanied by marked deformities, and ordinarily associated with manifestations of a general, or systemic, affliction. [1855 60] * * * Chronic,… …   Universalium

  • rheumatoid vasculitis — systemic vasculitis associated with rheumatoid arthritis, affecting small and medium sized vessels, and generally occurring in patients with long standing disease, rheumatoid nodules, and a high titer of rheumatoid factor …   Medical dictionary

  • rheumatoid factor — Complex of IgG and anti IgG formed in joints in rheumatoid arthritis. Serum rheumatoid factors are more usually formed from IgM antibodies directed against IgG …   Dictionary of molecular biology

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