This is a 2-part urine test to look for delta-9-tetrahydrocannabinol, or THC. THC is the active ingredient in marijuana. The test can find out if THC or related chemicals from marijuana called metabolites are in your urine. The test is considered quite accurate.
While THC is found throughout all of the aerial parts (i.e the sugar and fan leaves) of a marijuana plant, it is found most abundantly in the flowers of female marijuana plants. As we discussed above, these flowers are coated in small resin glands called trichomes.
The main cannabinoids are THC and cannabidiol (CBD).