Tag: urine drug testing


Revisions to Federal workplace drug testing

February 10, 2017 By

HHS revised its mandatory guidelines to expand federal urine drug testing to include hydrocodone, hydromorphone, oxycodone, and oxymorphone.

Urine testing

Combating cheating in urine drug testing

July 18, 2016 By

Yes, Quest can detect synthetic urine using specimen validity testing, a screening that determines if a specimen is human urine. All urine drug test specimens coming into Quest Diagnostics facilities include specimen validity testing as part of the drug testing process. Learn more about how Quest Diagnostics is combatting cheating in urine drug testing.


Challenging the poppy seed defense

October 16, 2015 By

A new Quest Diagnostics study helps to answer the question: Can eating poppy seeds produce a positive drug test for a job applicant or employee?


Find an Express Results™ Online collection site

May 1, 2015 By

Looking for location? Our interactive online map displays the collection sites where Express Results Online instant drug testing is currently offered.