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  2. Presumptive and confirmatory tests - Wikipedia

    en.wikipedia.org/wiki/Presumptive_and...

    Most people who take a drug test take a presumptive test, cheaper and faster than other methods of testing. However, it is less accurate and can render false results. The FDA recommends for confirmatory testing to be conducted and the placing of a warning label on the presumptive drug test: "This assay provides only a preliminary result.

  3. Drug test - Wikipedia

    en.wikipedia.org/wiki/Drug_test

    A "dipstick" drug testing method which could provide screening test capabilities to field investigators has been developed at the University of Illinois. [64] After a suspected positive sample is detected during screening, the sample is tested using a confirmation test. Samples that are negative on the screening test are discarded and reported ...

  4. Enzyme multiplied immunoassay technique - Wikipedia

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

    The more drug there is in the sample, the more free enzyme there will be, and the increased enzyme activity causes a change in color. [ 2 ] : 70 Determination of drug levels in serum is particularly important when the difference in the concentrations needed to produce a therapeutic effect and adverse side reactions (the therapeutic window ) is ...

  5. FDA approves first test to help screen for risk of ... - AOL

    www.aol.com/news/fda-approves-first-test-help...

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  6. Cannabis drug testing - Wikipedia

    en.wikipedia.org/wiki/Cannabis_drug_testing

    The antibody will then react with the drug-protein conjugate and a visible colored line will show up in the test line region of the specific drug strip. [ citation needed ] Cannabis use is included in the "10-panel urine screen", as well as the "SAMHSA-5", the five drugs tested for in standard NIDA approved drug tests.

  7. FDA approves new blood test to screen for colon cancer

    www.aol.com/news/fda-approves-blood-test-screen...

    The Food and Drug Administration on Monday approved Guardant Health’s blood test, called Shield, to screen for colon cancer.

  8. Welfare recipient drug testing brings shocking results - AOL

    www.aol.com/news/2015-07-24-welfare-recipient...

    The Arizona Department of Economic Security told the Arizona Sonora News Service earlier this year that over the course of more than five years, "42 people have been asked to take a follow-up drug ...

  9. Field sobriety testing - Wikipedia

    en.wikipedia.org/wiki/Field_sobriety_testing

    If the urine sample is positive, then the urine is sent for more testing to determine the exact drug taken (confirmation of being illegal or prescribed). [37] A similar process to being over the legal BAC level is undertaken using the evidence to penalise the user. [37]

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