Category: Hair testing

News

Quest Diagnostics & Labet offer hair drug testing in Brazil

March 7, 2016 By

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

Hair testing

Quest comments for hair specimen mandatory guidelines

August 5, 2015 By

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

Hair testing

Request for hair drug testing information

May 29, 2015 By

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

Hair testing

Detect repetitive drug use with hair testing

February 12, 2015 By

Hair testing is a method many employers rely on to help identify periodic and habitual drug use by applicants and employees.

Hair testing

Hair testing and the Drug Testing Index

December 10, 2014 By

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.

Hair testing

Ask the experts: Hair testing vs. hair follicle testing

July 3, 2014 By

We asked our scientific expert to better understand hair testing terminology and the hair testing collection process.

Hair testing

3,221 Drug users off the road thanks to hair testing

June 27, 2013 By

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.

Hair testing

Common questions about hair testing

May 29, 2013 By

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

News

Truck drivers and hair drug testing

May 28, 2013 By

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

Hair testing

See our hair drug testing lab in action

May 15, 2013 By

We are proud of our hair testing laboratory and the contribution we make to help keep the workplace safe.