Learn the important differences between Oral-Eze® and other oral fluid drug testing kits.

Scientific analysis of our hair drug testing process across 5 drug classes: amphetamines, cocaine, opiates, THC, and PCP.

Yes, Quest can detect synthetic urine using specimen validity testing, a screening that determines if a specimen is human urine. All urine drug test specimens coming into Quest Diagnostics facilities include specimen validity testing as part of the drug testing process. Learn more about how Quest Diagnostics is combatting cheating in urine drug testing.

Paperless drug testing means less forms, fewer errors and increased productivity. These three steps can help employers transition to online processes.

All workplace drug-testing programs should be a part of a clearly written, and current, policy that complies with relevant federal and state law.

Dr. Barry Sample discusses why a lab-based oral fluid test adds an additional level of accuracy and quality control to your drug testing process.

Over the past few weeks, we used five renowned sources of drug use data to compare and contrast the latest trends in illicit drug use.

Join us over the next several weeks as we use several renowned sources to compare and contrast the latest trends in drug use.

Join us over the next several weeks as we use several renowned sources to compare and contrast the latest trends in drug use.

Join us over the next several weeks as we use several renowned sources to compare and contrast the latest trends in drug use.