| This highly sensitive One Step Marijuana (THC) Test is a fast, qualitative, and visually read immunoassay for screening urine samples without the use of an instrument. The method employs a unique monoclonal antibody to selectively identify THC metabolites in the urine test sample with a high degree of sensitivity. The sensitivity of the Marijuana Test is set at a concentration of 50 ng/mL 11-nor-N9-tetrahydrocannabinol-9-carboxylic acid. This product is not intended to monitor drug levels, but only to screen urine samples for the presence of cannabinoid metabolite.
Marijuana is a major drug of abuse. After smoking or oral administration, the major psychoactive compound, tetrahydrocannabinol (THC), is extensively metabolized before excretion. The presence of tetrahydrocannabinol acid or the cannabinoid metabolite in urine is an indication of marijuana use. The excretion half-life of cannabinoid metabolites in urine, estimated by different techniques, ranges from one to ten days. For a positive initial immunoassay result, a cut-off value of 50 ng/mL total cannabinoid metabolites is required by the mandatory reference guidelines from the U.S. Department of Health and Human Services. |
