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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.
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 ...
Psychemedics Corporation is a United States corporation which provides patented, FDA-cleared, CAP certified clinical laboratory services for the detection of drugs of abuse. The company's corporate headquarters are located in Acton , Massachusetts and its laboratory operations are located in Culver City , California .
By M.B. Pell and Sharon Begley (Reuters) - Three Connecticut doctors billed Medicare for nearly 24,000 drug tests in 2012 - on just 145 patients. Despite the extraordinary number, Medicare ...
The above photo shows the positive results of the number 2 Marquis reagent presumptive drug test when used with a sample of opium. It is the primary presumptive test used in Ecstasy reagent testing kits. It can also be used to test for such substances as opiates (e.g. codeine, heroin), and phenethylamines (e.g. 2C-B, mescaline).
Immunoassays require drawing blood and using the antibodies to find a reaction with substances such as drugs. The substances must be specific. It is the most common drug screening technique. Using the targeted drug the test will tell you if it is positive or negative to that drug. There can be 4 results when taking the test.