Category: Hair testing

Quest Diagnostics & Labet offer hair drug testing in Brazil
Quest Diagnostics and Labet offer hair drug testing for professional drivers in Brazil after a new law was passed to improve transportation safety. Continue reading

By   /  March 7, 2016

Quest comments for hair specimen mandatory guidelines
HHS published an RFI seeking comments for federally-mandated hair drug testing. Here are our comments in response to the questions posed by HHS. Continue reading

By   /  August 5, 2015

Request for hair drug testing information
The HHS published an RFI seeking comments on regulatory policies and standards regarding the use of hair specimen for federally-mandated drug testing. Continue reading

By   /  May 29, 2015

Detect repetitive drug use with hair testing
Hair testing is a method many employers rely on to help identify periodic and habitual drug use by applicants and employees. Continue reading

By   /  February 12, 2015

Hair testing and the Drug Testing Index
Compared to other drug test specimen types like urine and oral fluid, hair testing is often preferred for evaluating long-term patterns of drug use. Continue reading

By   /  December 10, 2014

Ask the experts: Hair testing vs. hair follicle testing
We asked our scientific expert to better understand hair testing terminology and the hair testing collection process. Continue reading

By   /  July 3, 2014

3,221 Drug users off the road thanks to hair testing
Positive results for drug use have kept more than 3,200 prospective drivers from getting behind the wheel for J.B. Hunt Transport Services Inc. Continue reading

By   /  June 27, 2013

Common questions about hair testing
Quest Diagnostics answered many questions about hair drug testing during our webinar, but here are a few of the most commonly asked questions. Continue reading

By   /  May 29, 2013

Truck drivers and hair drug testing
While DOT regulations mandate urine drug testing, a number of motor carriers have found value in performing supplemental hair testing. Continue reading

By   /  May 28, 2013

See our hair drug testing lab in action
We are proud of our hair testing laboratory and the contribution we make to help keep the workplace safe. Continue reading

By   /  May 15, 2013