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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. How long does marijuana stay in the system? It depends on ...

    www.aol.com/long-does-marijuana-stay-system...

    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.

  4. Drug test - Wikipedia

    en.wikipedia.org/wiki/Drug_test

    The detection windows depend upon multiple factors: drug class, amount and frequency of use, metabolic rate, body mass, age, overall health, and urine pH. For ease of use, the detection times of metabolites have been incorporated into each parent drug. For example, heroin and cocaine can only be detected for a few hours after use, but their ...

  5. How Long Do Edibles Last? The Duration and Effects of ... - AOL

    www.aol.com/long-edibles-last-duration-effects...

    When it comes to drug testing for THC, a standard urine test can detect THC for up to thirty days after use, while a saliva drug test can detect THC for up to twenty-four hours following ...

  6. Forensic toxicology - Wikipedia

    en.wikipedia.org/wiki/Forensic_toxicology

    Marijuana, a substance with variable detection times depending on usage patterns, can be detected for 3 days after a single use, 5–7 days for moderate use (four times per week), 10–15 days for daily use, and less than 30 days for long-term heavy use, contingent upon frequency and intensity of consumption. [11]

  7. Home test kits can detect marijuana in cannabis products ...

    www.aol.com/news/home-test-kits-detect-marijuana...

    Does that product contain an illegal level of THC? This will help you find out.