Marijuana (THC) urine drug test is a rapid, one step immunoassay designed to detect 11-nor-∆-9 THC-9-carboxylic acid (THC) in human urine at a cut-off level of 50 ng/ml. Tetrahydrocannabinols (THC, ∆-9-THC, ∆-1-THC) are the most active of the principle constituents, as well as the major metabolites, of cannibinoids such as marijuana and hashish. Cannibinoids are used as central nervous system depressants and can be detectable in urine for 2-5 days (casual use) and 14-30 days (chronic use). The Marijuana (THC) urine drug test detects THC in order to evaluate the abuse of cannibinoids. The test is for healthcare professional use only and provides qualitative screening test results. A more specific alternate chemical method must be used in order to obtain a confirmed analytical result. The test is available in cassette and dip strip formats, with the option of being included in the multi-drug screen test.