Category: Drug Testing

Drug Testing

Weather Alert: inclement weather in the Midwest

January 31, 2022

Winter storm Landon may impact our operations, from specimen logistics to testing at our laboratories. We have adjusted staffing schedules and operations to minimize the impact.

Drug Testing

Is your workforce drug testing strategy ready to meet the demands of a growing job market?

September 24, 2021

it’s important to evaluate your staffing agency’s approach to workforce drug testing to ensure it’s ready to meet the demands of a growing and evolving job market.

Hair testing

Welcome to the way-back machine called hair testing

August 4, 2021

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

Drug Testing

Drug test collections – scheduling just got easier

June 22, 2021

The new Schedule at Check-in helps make drug test collection scheduling more efficient, consistent, and convenient for donors and employers alike.

Drug Testing

Drug positivity rates continue at historically high levels

May 26, 2021

Marijuana positivity continues double-digit increases to keep overall drug positivity at historically high levels, according to the latest Quest Diagnostics Drug Testing Index.

Hair testing

Ask the Experts: Hair drug test collections

May 18, 2021

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.

Urine testing

Thwarting drug test cheaters

May 4, 2021

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

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

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

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