Tag: detection window

Hair testing

Quest Diagnostics hair testing now includes specific testing for Fentanyl and Methadone

September 13, 2023

Recent enhancements to our hair testing panels now allow for more specific testing for Fentanyl and Methadone.

Hair testing

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

May 14, 2019

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.

By the Numbers

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

November 14, 2018

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.