Tag: blog

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Expiring Federal Drug Testing CCF

August 25, 2021 By

Prepare now for the expiration of the Federal CCF. Using old forms after this date will cause significant delays because a MFR will be required.

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Ask the Experts: Drug testing cutoffs

June 15, 2021 By

Employers should carefully select a drug test specimen type and cutoff level based on the desired window of detection and regulatory requirements.

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.

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Ask the experts: Secondhand marijuana smoke

May 11, 2021 By

Can you fail a drug test from secondhand smoke? There are no published, peer-reviewed studies to date that indicate someone would test positive on a drug test due to incidental exposure of marijuana smoke. Learn more from Dr. Barry Sample, Quest Diagnostics.

Urine testing

Thwarting drug test cheaters

May 4, 2021 By

There are safeguards to help employers prevent a job applicant or employee who uses drugs from cheating or altering a drug test. Learn more.

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.

News

Challenging the poppy seed defense

April 13, 2021 By

A Quest Diagnostics study helps to answer the question: Can eating poppy seeds produce a positive drug test for a job applicant or employee?

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?

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Ask the experts: The life of a drug testing specimen

March 23, 2021 By

Our labs handle more than eight million drug testing specimens yearly while maintaining an excellent track record of reliability and accuracy.

Drug Testing

Does workforce drug testing work?

January 19, 2021 By

There is a wealth of research that shows that workforce drug testing can help to foster a healthy, safe, drug-free environment.