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  2. Cannabis drug testing - Wikipedia

    en.wikipedia.org/wiki/Cannabis_drug_testing

    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 compete against their respective drug conjugate for binding sites on their specific antibody.

  3. Drug test - Wikipedia

    en.wikipedia.org/wiki/Drug_test

    Urine drug testing is one of the most common testing methods used. The enzyme-multiplied immune test is the most frequently used urinalysis. Complaints have been made about the relatively high rates of false positives using this test. [18] Urine drug tests screen the urine for the presence of a parent drug or its metabolites.

  4. Enzyme multiplied immunoassay technique - Wikipedia

    en.wikipedia.org/wiki/Enzyme_multiplied...

    Enzyme multiplied immunoassay technique (EMIT) is a common method for qualitative and quantitative determination of therapeutic and recreational drugs and certain proteins in serum and urine. [1] It is an immunoassay in which a drug or metabolite in the sample competes with a drug/metabolite labelled with an enzyme, to bind to an antibody. The ...

  5. Urine test - Wikipedia

    en.wikipedia.org/wiki/Urine_test

    A urine test is any medical test performed on a urine specimen. The analysis of urine is a valuable diagnostic tool because its composition reflects the functioning of many body systems, particularly the kidneys and urinary system , and specimens are easy to obtain. [ 1 ]

  6. 6-Monoacetylmorphine - Wikipedia

    en.wikipedia.org/wiki/6-monoacetylmorphine

    Since 6-MAM is a metabolite unique to heroin, its presence in the urine confirms heroin use. This is significant because a urine immunoassay drug screen typically tests for morphine, which is a metabolite of a number of legal and illegal opiates/opioids such as codeine, morphine sulfate, and heroin. Trace amounts of 6-MAM are excreted ...

  7. Urinalysis - Wikipedia

    en.wikipedia.org/wiki/Urinalysis

    The interpretation of urinalysis takes into account the results of physical, chemical and microscopic examination and the person's overall condition. Urine test results should always be interpreted using the reference range provided by the laboratory that performed the test, or using information provided by the test strip/device manufacturer. [136]

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  9. Quest Diagnostics - Wikipedia

    en.wikipedia.org/wiki/Quest_Diagnostics

    In 2018, Quest Diagnostics was among a number of US based labs linked to inaccuracies of over 200 women's cervical smear tests for CervicalCheck, Ireland's national screening program. [ 53 ] [ 54 ] Audits of the testing performed by Quest (and another subcontractor Clinical Pathology Laboratories, Inc. of Austin Texas) showed a high rate of ...

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