ALL ABOUT RHEUMATOID FACTOR - DIAGNOSTIC EXAMS

What is rheumatoid factor and how to interpret the result



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Rheumatoid factor is an autoantibody that can be produced in some autoimmune diseases and reacts against IgG, forming immunocomplexes that attack and destroy healthy tissues, such as cartilage of the joints, for example. Thus, the identification of rheumatoid factor in the blood is important to investigate the presence of autoimmune diseases, such as lupus, rheumatoid arthritis or Sjögren's syndrome, which usually have high values ​​of this protein. How