Diverse testing for diverse needs

Quest Diagnostics helps you protect your practice and your patients with state-of-the-art testing, including a broad range of drug tests to meet medical necessity needs to identify the presence of prescribed and non-prescribed or illicit drugs.

Diverse testing for diverse needs

State-of-the-art technologies and 650 toxicology and medical experts—a powerful combination

With fast turnaround, accurate results confirmation, an industry-leading testing portfolio, and an array of on-staff toxicologists and medical experts, Quest Diagnostics provides the most trusted and reliable drug monitoring services available today.

  State-of-the-art technologies and 650 toxicology and medical experts—a powerful combination

Latest in drug testing

New to Prescribing Opioids? What You Need to Know to Keep Your Patients Safe

For patients with chronic pain, opioid medications can offer an important treatment option. If you are a clinician who is new to prescribing opioids, there are several important resources and best practices that can help keep your patients safe and properly treated while receiving opioids.

Centers for Disease Control Guideline…

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Industry-leading expertise from Quest Diagnostics

Over 650 MDs, PhDs, genetic counselors, and toxicologists are available for results interpretation and consultation on all of our drug tests.

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F. Leland McClure, MSci, PhD, F-ABFT

​Dr. McClure is a Director of Medical Affairs for Quest Diagnostics, and a leading figure in the field of clinical drug monitoring.

 
Meet our experienced team