Tag: drug test results

Ask the Experts

Ask the experts: The life of a drug testing specimen

March 23, 2021

Our labs handle more than eight million drug testing specimens yearly while maintaining an excellent track record of reliability and accuracy.

Ask the Experts

Ask the experts: Drug testing and prescription medication

September 11, 2018

What happens if you fail a drug test but have a prescription? Learn about the important role Medical Review Officers have in the drug screening process.

We're There

We’re There When You Need Us™

February 29, 2012

Accurate. Reliable. Efficient. Convenient. These words were used most often used to describe Quest Diagnostics drug testing services.


National customer support center

March 17, 2010

Your feedback told us that you wanted one group to contact for all of your daily needs, questions and information.