"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™
Check Out Our Best Services for Investors
- $2.5+ million portfolio
- Large-cap and dividend focus
- Intraday trade alerts from Cramer
Access the tool that DOMINATES the Russell 2000 and the S&P 500.
- Buy, hold, or sell recommendations for over 4,300 stocks
- Unlimited research reports on your favorite stocks
- A custom stock screener
- Model portfolio
- Stocks trading below $10
- Intraday trade alerts
More than 30 investing pros with skin in the game give you actionable insight and investment ideas.