It is the collection and analysis of blood and urine samples for the purpose of screening for prohibited substances and changes that have taken place as a result of having used a banned substance or ...

Though a band of the country’s largest for-hire motor carriers continue to promote the benefits of screening drivers for drug use via hair sample testing over a urine sample test, a rule from the U.S.

A urine drug test is used to detect the presence of illegal and prescription drugs in urine. It’s also known as a urine drug screen. In a urine drug test, a sample of urine is sent to a lab. A tester ...