[Effects of drugs on the results of passive hemagglutination test]. / Vliianie lekarstvennykh sredstv na rezul'tat reaktsii priamoi gemaggliutinatsii.

Study on the effects of some drugs on the results of passive hemagglutination test used for the detection of antitetanus antibodies in the blood serum showed that some drugs had a pronounced dose-dependent effect on antibody titers in experiments in vitro with standard antitoxic serum. The possibility of such errors should not be disregarded when assessing the results of the test.