Learn more about the most common reasons for testing, including pre-employment, random, and DOT. We offer a broad range of drug screening options that allow you to combine and customize your …

We offer comprehensive drug test panels and individual toxicology screenings. No doctor’s visit is required – simply purchase your drug testing, visit a nearby Quest® location for sample collection, …

Quest Diagnostics Incorporated is an American clinical laboratory. A Fortune 500 company, Quest operates in the United States, Puerto Rico, Mexico, and Brazil. [3] Quest also maintains collaborative …

We follow the collection guidelines published by the U.S. Department of Transportation (DOT) for urine drug testing. To learn about drug testing industry trends and information, visit our Drug Testing Index …

Accurate and confidential. Buy your own 11 panel drug test online. Get nearby testing to detect various substances in urine - indicating recent drug use.

We offer a broad menu of drug tests, including tests for prescription drugs, other controlled medications, and illicit drugs—with enhanced sensitivity to better detect benzodiazepines and opioids.

Every Quest Diagnostics drug testing laboratory participates in rigorous lab proficiency testing to maintain the highest levels of Six Sigma quality. We have established a reputation as a national …

Accurate + confidential. Buy a 6 panel drug test online. Get nearby testing to detect amphetamine, benzodiazepine, marijuana, cocaine, opiate, and oxycodone use.

Designed for speed and reliability, this POCT oral fluid product is an easy-to-administer solution to detect recent drug use. In as little as 10 minutes, you can have test results—impartially—when …

Find a Quest Diagnostics location nearby to complete sample collection for doctor-ordered or self-purchased lab tests.