Category: Hair testing

Hair testing

Welcome to the way-back machine called hair testing

August 4, 2021 By

Risk and opportunity are linked, but maybe not in the way you think. Because with hair testing, the elimination of risk is the opportunity.

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.

Hair testing

Ask the experts: Hair testing vs. hair follicle testing

April 27, 2021 By

What is the difference between hair drug testing and hair follicle drug testing? We asked a Quest expert to explain.

Hair testing

Ask the experts: Effects of hair treatments on drug test results

April 6, 2021 By

Our scientific expert, Dr. Barry Sample, answers the question: Can products and treatments affect hair drug test results?

Hair testing

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.

Urine testing

Back to basics – What you need to know about each drug test specimen

December 22, 2020 By

Our webinar series teaches you the fundamentals of the most popular drug test specimens to help employers execute a successful workforce drug testing program. Watch now.

Hair testing

Proposed guidelines for hair drug testing

November 24, 2020 By

SAMHSA has proposed scientific and technical guidelines for the inclusion of hair in Federal drug testing programs. Note: These are only proposed Guidelines and hair testing is not approved for any Federally mandated drug (eg, DOT) testing. Read all public comments online including those from Quest.

Hair testing

Advantages of hair drug testing in transportation

August 4, 2020 By

Hair drug testing can benefit all aspects of your business, but especially transportation.

Hair testing

What you need to know about hair drug testing

March 31, 2020 By

Employers choose hair testing to help identify habitual and periodic drug users using its 90-day drug detection window. Get the facts.

Hair testing

Hair testing now includes more specific testing for oxycodones

June 3, 2019 By

Recent enhancements to our hair testing panels now allow for more specific testing for opiate-like or opioid drug such as oxycodone and its metabolites.