Tag: positivity


2016 National Drug-Free Work Week

October 10, 2016

This year’s annual observance of the National Drug-Free Work Week is October 10 through 15.

Drug Testing

Webinar insights: Tracking the trends

October 10, 2014

Dr. Barry Sample, Director of Science and Technology, reviewed key data and insights from the Quest Diagnostics Drug Testing Index.


Positivity is up for the first time in a decade

September 25, 2014

After years of declines, the prevalence of positive workforce drug tests is increasing according to the Quest Diagnostics Drug Testing Index data.


Impacts of panel changes – The first three months

January 25, 2011

In November we published this article which discussed the preliminary impacts of the HHS panel changes on drug test positivity.

Drug Testing

Impacts of panel changes on your drug testing program

November 23, 2010

One month in, we have some preliminary findings from our DOT regulated results to report: