Category: Blog Series

Under the influence

Under the influence: prescription opioids

June 20, 2019 By

If someone close to you were struggling with opioid dependence, would you see the signs of addiction? We take a closer look at prescription opioid misuse.

Oral Fluid testing

Understanding oral fluid testing terminology

May 23, 2019 By

Oral fluid drug testing systems represent cutoffs as neat rather than diluted. Our expert explains the difference.

Hair testing

Hair testing webinar in review

May 17, 2019 By

In the third and final installment of our webinar series, Back to basics, we focused on hair drug testing and combed through the key features.

Hair testing

Ask the experts: Can hair testing detect one-time drug use?

May 14, 2019 By

Employers who look for solutions to detect one-time drug use often ask if hair testing may be a viable option. We help to provide insight.

Hair testing

Back to basics webinar series: hair drug testing

April 17, 2019 By

Untangling the benefits of this drug testing type, Quest experts provide insightful information in our upcoming webinar, Back to basics: hair drug testing.

Oral Fluid testing

Expert emphasizes benefits of oral fluid drug testing

March 22, 2019 By

An observed collection ranks as a key benefit of oral fluid drug testing because it reduces the opportunity for a donor to alter or tamper with their specimen.

Oral Fluid testing

Back to basics webinar series: oral fluid drug testing

March 1, 2019 By

Dr. Kimberly Samano discusses the benefits of oral fluid drug testing in our webinar, Back to basics: Oral fluid drug testing.

Ask the Experts

Cannabidiol and drug tests

February 8, 2019 By

Maybe. CBD itself would not report positive on a drug test for marijuana or marijuana metabolite. In some states, CBD may contain up to 5% THC. If the CBD product contains THC at a sufficiently high concentration, it is possible that the use of these products could cause a positive urine drug test result.

Blog Series

A Closer Look: Series introduction

February 8, 2019 By

A new year brings new beginnings. That said, we are excited to introduce our new blog series called A Closer Look.

By the Numbers

By the numbers: Drug users avoid working for employers who test

November 14, 2018 By

National Survey on Drug Use and Health (NSDUH) national drug use data, compared to Quest Diagnostics Drug Testing Index (DTI) workplace drug use data reveals that drug users avoid working for employers who test.