RHELAX -ASO slide test for detection of antibodies to streptolysin O is based on the principle of agglutination. The test specimen (serum) is mixed with Rhelax -ASO latex reagent and allowed to react. If antibodies to streptolysin O are present in concentrations more than 200 IU/ml then a visible agglutination is observed. If antibodies to streptolysin O are not present or are in concentrations less than 200 IU/ml then no agglutination will be observed.
