Hemolytic activity can be determined by performing a hemolysis test. The hemolysis test is a laboratory procedure that is used to measure the ability of a substance to cause the destruction of red blood cells. The test is usually done in two parts: a positive control and a negative control. In the positive control, a known hemolytic substance is added to a sample of red blood cells and the extent of hemolysis is measured. In the negative control, no hemolytic substance is added and the extent of hemolysis is measured. By comparing the results of the two tests, it is possible to determine the degree of hemolytic activity of the sample.
In addition to the hemolysis test, other tests may be used to measure hemolytic activity. These include the osmotic fragility test, the hemoglobin release test, and the erythrocyte aggregation test. Depending on the purpose of the test, different tests may be used to measure hemolytic activity.