Positive drug test results among America’s workforce reached their highest rate last year since 2001 and were up more than 30 percent in the combined U.S. workforce from an all-time low in 2010-2012, according to a new analysis by Quest Diagnostics, the world’s leading provider of diagnostic information services. Based on 11 million-plus deidentified urine, hair and oral fluid drug…
Read MorePositive drug test results reach 20-year high, spiking from a decade ago
