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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.
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.
Employer drug testing and paramedical testing division Lenexa, Kansas: 934,000,000: 2006: Focus Diagnostics, Inc. Infectious and immunologic disease laboratory Virginia: 185,000,000: 2007: Hemocue: point-of-care diagnostic testing Sweden: 2007: AmeriPath (and subsidiary Specialty Laboratories) cancer diagnostic testing 2011: Athena Diagnostics
The Duquenois reagent is used in the Rapid Modified Duquenois–Levine test (also known as the simple Rapid Duquenois Test), which is an established screening test for the presence of cannabis. The test was initially developed in the 1930s by the French medical biochemist Pierre Duquénois (1904–1986) and was adopted in the 1950s by the ...
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Quest Diagnostics' (DGX) new COVID-19 tests start adding to its Diagnostic information Services business sales.
Typhidot is a medical test consisting of a dot ELISA kit [1] that detects IgM and IgG antibodies against the outer membrane protein (OMP) of the Salmonella typhi.The typhidot test becomes positive within 2–3 days of infection and separately identifies IgM and IgG antibodies.
The first round of the College Football Playoff has three matchups scheduled Saturday across various campus sites. We break down each game.