Avoid testing delays – transition to the new DOT CCF

June 3, 2021 By

Current DOT CCFs are expiring soon. Proactively prepare for this change and double-check your paper CCF inventory today. Act now to avoid testing delays.
Drug positivity rates continue at historically high levels

May 26, 2021 By

Marijuana positivity continues double-digit increases to keep overall drug positivity at historically high levels, according to the latest Quest Diagnostics Drug Testing Index.
Common questions about hair testing

March 9, 2021 By

An expert from Quest Diagnostics answers some of the most common questions about hair drug testing.
Why choose Quest Diagnostics

January 5, 2021 By

Quest Diagnostics is the only SAMHSA-certified and CAP-FDT-accredited laboratory to offer in-house testing for all three of the most popular drug test types: urine, oral fluid, and hair.
Comprehensive drug testing solutions

December 15, 2020 By

Drug testing can be complicated, but it doesn’t have to be. We can help employers choose the elements that are most valuable for their employees.
New insights from the National Survey on Drug Use and Health

December 8, 2020 By

It is important for employers to examine trends and data, such as NSDUH, that helps to inform a workforce drug testing program.
Marijuana positivity in America’s workplace

September 15, 2020 By

Data shows increases in marijuana positivity rates across workforce categories, drug test specimen types, and regions in the United States.
Ask the experts: Is an oral fluid drug test safe?

June 9, 2020 By

During the novel coronavirus health crisis, many employers ask is if an oral fluid drug test is safe in the current circumstances. Under rigorous safety procedures, drug testing continues across the country.
Electronic breath alcohol test (eBAT) now available

May 26, 2020 By

With an expanding collection site network, electronic breath alcohol testing, or eBAT, from an industry leader is now a reality.
Drug test collections during the COVID-19 emergency

April 7, 2020 By

Quest Diagnostics continues to provide workplace drug and alcohol testing solutions while working to maintain a safe environment for donors and employees.
Marijuana frequently asked questions

January 7, 2020 By

Whether it is about its legal status, its side effects, or if employers can drug test employees, questions are plentiful about marijuana. We’ve answered some of the most frequently asked questions to help you sift through the noise and get a true sense of the current state of marijuana.

Latest posts

Drug Testing

Avoid testing delays – transition to the new DOT CCF

June 3, 2021 By

Current DOT CCFs are expiring soon. Proactively prepare for this change and double-check your paper CCF inventory today. Act now to avoid testing delays.

Ask the Experts

Ask the Experts: Drug testing cutoffs

June 15, 2021 By

Employers should carefully select a drug test specimen type and cutoff level based on the desired window of detection and regulatory requirements.

Webinars

Webinar: Cannabis and the workplace

June 1, 2021 By

Our webinar helps employers navigate the complexities of cannabis and the workplace. Register today and learn how to better navigate this complex topic.

Drug Testing

Drug positivity rates continue at historically high levels

May 26, 2021 By

Marijuana positivity continues double-digit increases to keep overall drug positivity at historically high levels, according to the latest Quest Diagnostics Drug Testing Index.

Hair testing

Ask the Experts: Hair drug test collections

May 18, 2021 By

The amount of hair needed for a hair drug test is approximately 100 milligrams made up of the first 1-½ inches from the root end. The hair is typically cut from the crown of the back of the head in a manner where it will not be as noticeable. Learn more about hair drug test collections.

Ask the Experts

Ask the experts: Secondhand marijuana smoke

May 11, 2021 By

Can you fail a drug test from secondhand smoke? There are no published, peer-reviewed studies to date that indicate someone would test positive on a drug test due to incidental exposure of marijuana smoke. Learn more from Dr. Barry Sample, Quest Diagnostics.