Despite the fact that more than 20 states have legalized marijuana for medical purposes and for recreational use, this inexpensive, accurate test lets you know if your kids are smoking pot and enables schools to efficiently test students & athletes. The sensitivity cut-off level is 50 ng/ml established by the U.S. Department of Health and Human Services, World Health Organization and SAMHSA. • Marijuana, a hallucinogen, is commonly ingested by smoking, but may also be orally ingested. Marijuana is most commonly the drug of choice among teenagers and young adults. The hallucinogenic effect of Marijuana can lead to irrational behavior, disorientation, and paranoia. THC (9-tetrahydrocannabinol) is the primary active ingredient in cannabinoids (marijuana). When ingested or smoked, it produces euphoric effects. Users have impairment of short-term memory and THC use slows learning. Also, it may cause transient episodes of confusion, anxiety, or even toxic delirium. Long term, relatively heavy use may be associated with behavioral disorders. The peak effect of smoking THC occurs in 20-30 minutes and the duration is 90-120 minutes after one cigarette. Elevated levels of urinary metabolites are found within hours of exposure and remain detectable for 3-10 days after smoking.
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