A record number of U.S. workers are cheating on employer drug tests by tampering with urine samples or using other means to evade detection, new research shows. The percentage of employees who tried ...

According to data released today by Quest Diagnostics’ Drug Testing Index ® (DTI), results from workplace drug screenings conducted in 2007 show a more than 50 percent decline in the percentage of ...

New mothers say they had to undergo devastating investigations after hospitals reported their false positive drug tests to child welfare agencies shortly after they gave birth. This report is ...

The field of alcohol and drug abuse testing is rapidly evolving, with new drugs continually emerging and new methods for their accurate detection and quantification continuing to be required. Dr. Olof ...