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Products and services

As your drug testing provider, Quest Diagnostics offers a full line of lab-based and instant drug testing products and services with the critical information you need to make confident and informed decisions about prospective and current employees.

We have established a reputation as a leader in workplace drug testing, with full accreditation by leading U.S. healthcare institutions and government agencies. We offer a full range of drug testing solutions, from standard to customized panels.


Urine drug testing

Lab-based urine testing is the industry standard drug testing method for workplace drug testing. It is also the only method approved for federally mandated drug tests.

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Oral fluid drug testing

Oral fluid testing with Oral-Eze® and its blue indicator window help to ensure that a sufficient volume of oral fluid is collected for initial. Oral-Eze offers an improved donor experience.

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Hair drug testing

Hair testing expands the detection window of drug use for up to 90 days. Due to its observed collection, a donor's efforts to prepare for or cheat a hair drug test are largely ineffective.

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Specimen validity testing

With specimen validity testing, we can help ensure the integrity of a drug test by measuring pH, creatinine and specific gravity (when indicated) and testing for adulterants that may be added to the urine specimen.

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