Knowledge Center

Quest Diagnostics

Knowledge Center for drug testing

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Regardless of your tenure or experience with workplace drug testing, it can sometimes be a challenge to maintain your proficiency. We strive to provide industry-leading tools that answer questions, improve your programs, and leverage best practices.

The resources in our Knowledge Center give you access to dynamic program-enhancing tools and information. Since we know that staying well-informed is important to you, we provide most of these resources free of charge. This is yet another way we show We're There When You Need Us™.

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Drug testing blog

Our blog serves as a resource to stay informed with the latest news and better understand issues and trends in the drug testing industry.
Get the latest information


Quest Diagnostics Drug Testing Index™

The Drug Testing Index reveals insights into patterns of drug use among the American workforce. We publish these findings as a public service for government, policymakers, employers, media, and the general public.

See the latest data

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Comprehensive workplace drug testing guide

Our guide can help you to create an ´╗┐effective program that deters drug use in the workplace. Determine what is appropriate for your business, industry, workforce type, and location using a range of testing reasons and test types.

Download our guide


Online drug testing training

Training your workforce about alcohol and drug testing is critical to maintaining a drug-free workplace. We offer a variety of online training programs to choose from for additional education.

Take our training

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Drug testing resources

Learn more about workplace drug and alcohol testing from white papers, case studies, webinars and resources offered by Quest Diagnostics.

Download our free resources

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Educational webinars

As a leader in workplace drug testing, we are committed to sharing our expertise and knowledge with the industry. Our webinars are presented by industry experts and scientific leaders and archived by topic.

Watch an on-demand webinar

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Our commitment to quality

Our pursuit of exceptional quality falls into four key areas of focus: reliable drug testing, collection site network, a robust product offering, and technology to simplify the process.

Learn more about quality