The ASI VDRL Antigen Test is a qualitative and semiquantitative nontreponemal flocculation test for the detection of reagin antibodies in human serum. These materials are intended to be acquired, possessed and used only by health professionals.

The ASI VDRL Antigen Test is a microscopic nontreponemal flocculation test to be used for the detection of reagin. The procedure is based on the VDRL antigen being combined at a correct ratio with buffered saline and then mixed with heatinactivated serum.