Methods of Drug TestingThere are various methods used to conduct drug tests, each with their own advantages and limitations:Urine Drug Testing Urine is the most common biological specimen tested since drug metabolites are highly concentrated in urine and testing is relatively noninvasive. Urine drug tests can detect drug use within the past few days for most substances. However, urine requires...
English
Arabic
Français
Español
Deutsch
Türkçe
Dutch
Italiano
Russian
Romaian