What are the four examinations for rheumatism

The four tests for rheumatism include anti chain O, rheumatoid factor, erythrocyte sedimentation rate and C-reactive protein. The normal value of anti streptococcal hemoglobin O is less than one to five hundred. If it is positive, it indicates that the body is infected with hemolytic streptococcus, which can lead to rheumatic fever. Rheumatoid factors are common in a variety of rheumatic diseases and acute and chronic inflammation. Therefore, a positive rheumatoid factor alone cannot be considered as rheumatoid arthritis. However, if the titer of rheumatoid factor is high and it is tested positive for many times, then the possibility of rheumatoid arthritis is high. ESR, namely erythrocyte sedimentation rate, refers to the natural sedimentation rate of erythrocyte in anticoagulant whole blood in vitro under certain conditions. The normal value is 0-15mm/hour for males and 0-20mm/hour for females. It will increase in the active period of rheumatism. It is a reliable method for measuring the activity of rheumatism and arthritis. C-reactive protein, the normal value is less than 8 mg/L, and C-reactive protein is high, indicating that infection, trauma, inflammation, and disease are still active in the body. The four items of rheumatism are generally the most routine screening tests, which are used to screen common rheumatic diseases, or to know whether there is inflammatory reaction in the body.