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The main metabolite excreted in the urine is 11-Nor-9-carboxy-THC, also known as THC-COOH. Most cannabis drug tests yield a positive result when the concentration of THC-COOH in urine exceeds 50 ng/mL. [10] Urine testing is an immunoassay based test on the principle of competitive binding. Drugs which may be present in the urine specimen ...
The 4/20 holiday is this weekend, and if you choose to celebrate, please do so safely. But also, be wary of coming drug tests.
A urine drug screen can be useful for objectively determining the presence of cannabinoids in a person's system. [8] Cannabinoid metabolites (specifically 11-nor-Δ9-carboxylic acid) can be detected in urine for about 2 to 8 days with short-term use, and for 14–42 days of chronic use. [24]
The Duquenois reagent is used in the Rapid Modified Duquenois–Levine test (also known as the simple Rapid Duquenois Test), which is an established screening test for the presence of cannabis. The test was initially developed in the 1930s by the French medical biochemist Pierre Duquénois (1904–1986) and was adopted in the 1950s by the ...
The marijuana users also had 22% higher levels of cadmium in their blood, according to the research, which was published Wednesday in the journal Environmental Health Perspectives. Urine samples ...
Second hand cigarette smoke may give you cancer, but a second hand toke from a marijuana joint could make you lose your job!
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