"The higher oral fluid detection rate for marijuana strongly suggests that observed oral fluid collection curbs evasive donor behavior," said Dr. Sample. "Simply put, it is extremely difficult to cheat an oral fluid collection when someone is observing."While both urine and oral fluid testing are highly effective in detecting recent drug use, urine specimen collection is unobserved, affording donors seeking to evade detection with the means to adulterate the specimen. In contrast, oral fluid specimens are collected when the donor places a swab in his or her mouth under direct observation of the drug test administrator.
Pre-Employment Drug Test Positives Increase More Than 5%, According To New Data From Quest Diagnostics Drug Testing Index™
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