Testing for drugs

                This topic has been debated for over a decade. Analytical methods have advanced, and the drug test pool has expanded from mainly amphetamines to include most drugs of abuse. With this in mind, it is time to review the DOT 5 panel drug testing requirements for common substances that may result in a positive drug screen, but do not generally fit within the category of “non-negative”. A urine specimen will be considered non-negative if any one or more of these five drugs are detected at a concentration equal to or greater than 0.02 ng/ml:

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