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  2. Cannabis drug testing - Wikipedia

    en.wikipedia.org/wiki/Cannabis_drug_testing

    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 ...

  3. Tetrahydrocannabinol - Wikipedia

    en.wikipedia.org/wiki/Tetrahydrocannabinol

    There is a slight increase in dose proportionality in terms of peak and area-under-the-curve levels of THC with increasing oral doses over a range of 2.5 to 10 mg. [21] A high-fat meal delays time to peak concentrations of oral THC by 4 hours on average and increases area-under-the-curve exposure by 2.9-fold, but peak concentrations are not ...

  4. Drug test - Wikipedia

    en.wikipedia.org/wiki/Drug_test

    Urine drug tests screen the urine for the presence of a parent drug or its metabolites. The level of drug or its metabolites is not predictive of when the drug was taken or how much the patient used. [19] Urine drug testing is an immunoassay based on the principle of competitive binding. Drugs which may be present in the urine specimen compete ...

  5. Unlike alcohol, THC impairment is hard to measure — making a ...

    www.aol.com/news/arbitrary-cutoffs-thc-levels...

    Then, THC levels drop rapidly to less than 2 nanograms per milliliter of blood after about four hour. It takes around eight hours to reach similarly low concentrations of THC after taking an edible.

  6. 11-Nor-9-carboxy-THC - Wikipedia

    en.wikipedia.org/wiki/11-nor-9-Carboxy-THC

    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.

  7. Marijuana users found to have lead and another heavy metal in ...

    www.aol.com/news/marijuana-users-found-lead...

    Marijuana users may have elevated levels of lead and cadmium in their blood and urine, a study shows. The heavy metals are linked to long-term health issues.

  8. NFL tweaks its drug policy, increasing levels for a positive ...

    lite.aol.com/sports/story/0001/20241204/a3b3b5bb...

    The positive THC level was increased from 150 ng/ml (nanograms per milliliter) to 350 ng/ml, per the memo, which was obtained by The Associated Press. Tetrahydrocannabinol is the substance that’s primarily responsible for the effects of marijuana on a person’s mental state.

  9. Cannabinoid - Wikipedia

    en.wikipedia.org/wiki/Cannabinoid

    Because the law limited only Δ 9-THC levels, many other cannabinoids are generally considered legal to sell and are widely available in stores and online, including Δ 8-THC, Δ 10-THC, HHC, and THCP, [68] [69] but have not had the same in-depth research that the Δ 9 isomer has on the human body; carrying potential risks in the short- or long ...

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