Tag: hair test for drugs

Ask the Experts: Hair drug test specimens
Our experts explain how a hair drug test specimen can be taken from other parts of the body if someone is lacking hair or is bald. Continue reading

By   /  October 17, 2017

Ask the Experts: Hair drug test collections
How much hair is cut for a drug test? Our scientific experts explain the specific amount of hair needed by the laboratory for testing. Continue reading

By   /  August 4, 2017

Ask the experts: Effects of hair treatments on drug test results
Some employers who use hair testing as part of their workplace drug testing program wonder if hair products can have an impact on their test results. Continue reading

By   /  June 27, 2016

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

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

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

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

See our hair 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

Hair testing 101: Combing through the science
Hair drug testing is the only method that provides up to a 90-day drug use history. View our webinar, “Hair Testing 101: Combing through the Science.” Continue reading

By   /  May 6, 2013