Tag: drug testing providers

New to Drug Testing

New to drug testing: Over but not out

May 1, 2014

Whether you’ve been in the industry for two weeks or twenty years, in some ways, we are all new to drug testing.

New to Drug Testing

New to Drug Testing: Ask the experts

January 17, 2014

Our new column, “Ask the Experts” will feature real questions asked by our readers and will be answered by our industry experts.

New to Drug Testing

New to drug testing: Cold medicine’s effect on drug test results

December 20, 2013

Some cold medicines contain drugs such as hydrocodone, codeine and sympathomimetics, which have been reported to affect drug test results.


Trust the name. Trust the numbers.

September 11, 2013

Trust Quest Diagnostics as a reliable, accurate drug testing provider because we offer broad access, extensive testing, insightful data and resources.