Quest Diagnostics says it's tracking a concerning drug trend in the workplace

DENVER — Quest Diagnostics said it's tracking a concerning drug trend in the workplace after analyzing 8 million drug tests across the country.

While positive drug tests were slightly down overall, fentanyl tests jumped significantly for people testing positive post-employment versus pre-employment, the company found.

In a release, Quest Diagnostics said:

“While the analysis of more than 8 million drug tests shows that overall workplace urine drug positivity declined slightly last year, to 4.4% from 4.6%, the sharp increase in fentanyl in random drug checks suggests more workers are using the highly addictive opioid after they have passed pre-employment screens. Random drug testing involves unscheduled and unannounced drug tests of employed individuals after they have presumably passed