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Delta 9 THC is the parent compound. If a saliva sample is tested in a lab, the detection level can be as low as 0.5 ng/mL (up to 72 hours after intake). [24] Per National Institute on Drug Abuse saliva drug testing provides a reasonable alternative to other drug testing methods. [25]
As of January 1, 2018, the THC-A testing cutoffs were 50 ng/mL for an initial immunoassay test and 15 ng/mL for a confirmatory gas chromatography–mass spectrometry test. [ 42 ] State
In 2013, the level of THC metabolite allowed was changed from 15 ng/mL to 150 ng/mL so as to only detect in-competition use. [11] [7]: 7 In cannabis (hashish, marijuana) and cannabis products; Synthetic cannabinoids that mimic the effects of THC; Natural and synthetic tetrahydrocannabinols (THCs)
As an example the SAMHSA cutoffs for cannabinoids are 50 ng/ml for the immunoassay and 15 ng/ml as confirmed by GC/MS. [6] Immunoassays that do not conform with SAMHSA, featuring a cutoff of 20 ng/ml, have been shown to produce false positives from passive inhalation of marijuana smoke. [7]
A drug test showed that he had 17.8 ng/mL of THC metabolite in his system, slightly higher than the 15 ng/mL threshold used by the International Ski Federation. [169] The IOC executive board voted 3–2 to disqualify him from competition on February 11, 1998, which the Canadian Olympic Association immediately appealed. [170]
11-COOH-THC is a Schedule 8 prohibited substance in Western Australia under the Poisons Standard (July 2016). [15] A schedule 8 substance is a controlled Drug – Substances which should be available for use but require restriction of manufacture, supply, distribution, possession and use to reduce abuse, misuse and physical or psychological dependence.
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THC and its 11-OH-THC and THC-COOH metabolites can be detected and quantified in blood, urine, hair, oral fluid or sweat using a combination of immunoassay and chromatographic techniques as part of a drug use testing program or in a forensic investigation. [57] [58] [59] There is ongoing research to create devices capable of detecting THC in ...