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2. Drug test - Wikipedia

   en.wikipedia.org/wiki/Drug_test

   Drug test. MeSH. D015813. A drug test (also often toxicology screen or tox screen) is a technical analysis of a biological specimen, for example urine, hair, blood, breath, sweat, or oral fluid/saliva —to determine the presence or absence of specified parent drugs or their metabolites. Major applications of drug testing include detection of ...

3. Cannabis drug testing - Wikipedia

   en.wikipedia.org/wiki/Cannabis_drug_testing

   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. Unlike alcohol, for which impairment can be reasonably measured using a breathalyser (and confirmed ...

4. Drug checking - Wikipedia

   en.wikipedia.org/wiki/Drug_checking

   Drug checking. Drug checking or pill testing is a way to reduce the harm from drug consumption by allowing users to find out the content and purity of substances that they intend to consume. This enables users to make safer choices: to avoid more dangerous substances, to use smaller quantities, and to avoid dangerous combinations.

5. Sensitivity and specificity - Wikipedia

   en.wikipedia.org/wiki/Sensitivity_and_specificity

   Medical usage. In medical diagnosis, test sensitivity is the ability of a test to correctly identify those with the disease (true positive rate), whereas test specificity is the ability of the test to correctly identify those without the disease (true negative rate). If 100 patients known to have a disease were tested, and 43 test positive ...

6. Welfare recipient drug testing brings shocking results - AOL

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

   In November 2009, GOP Gov. Jan Brewer of Arizona made an announcement that the state would test adults if they felt like there was a "reasonable cause" to believe they were getting high.

7. 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.