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Cannabis drug testing describes various drug test methodologies for the use of cannabis in medicine, sport, and law. Cannabis use is highly detectable and can be detected by urinalysis , hair analysis , as well as saliva tests for days or weeks.
However, cannabis smoke has been found to be carcinogenic in rodents and mutagenic in the Ames test. Correlating cannabis use with the development of human cancers has been problematic due to difficulties in quantifying cannabis use, unmeasured confounders, and cannabinoids' potential as cancer treatment. [76]
Proposition 215 – the Compassionate Use Act of 1996 – was subsequently approved with 56% of the vote, legalizing the use, possession, and cultivation of cannabis by patients with a physician's recommendation, for treatment of cancer, anorexia, AIDS, chronic pain, spasticity, glaucoma, arthritis, migraine, or "any other illness for which ...
A new study found evidence that marijuana could potentially be used to fight skin cancer, slowing the disease’s growth and killing cancerous cells before they have a chance to spread. But the ...
The analysis showed that people with cannabis use disorder were about 2.5 times more likely to develop an oral cancer; nearly five times more likely to develop oropharyngeal cancer, which is ...
According to a new NAS report released on Thursday, Marijuana use may raise the risk of developing schizophrenia and other psychoses. Marijuana use linked to schizophrenia, no cancer threat Skip ...
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 United Nations as the preferred test for cannabis. The test was originally claimed to be specific to cannabis. After several modifications, it became known as the Duquenois–Levine test.
A cloud of marijuana smoke rises as a clock hits 4:20 p.m. during the Mile High 420 Festival in Denver on "weed day" in 2022. - Patrick T. Fallon/AFP/Getty Images/File