Drugs of Abuse Detection Times and Drug Metabolites
THCA normalization to urine creatinine is available upon request. This calculation is useful for monitoring patients with Marijuana abuse syndrome. Monitor THCA/Creatinine normalized values in urine at least once per week to help assess abstinence vs. continued use.
THCA is the primary metabolite of THC (delta-9-tetrahydrocannabinol, marijuana's major psychoactive ingredient). This test cannot differentiate between prescribed (e.g. Marinol), medical marijuana, or illicit forms of marijuana. This test cannot distinguish between active or passive marijuana exposure, or if the patient is under the influence of marijuana at the time of the specimen collection.