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.
Oral fluid drug testing
Oral fluid testing help to ensure that a sufficient volume of oral fluid is collected for initial. Oral fluid collections offer an improved donor experience.
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.
Instant drug testing
Instant testing, also known as Point of Care Testing (POCT) allows for drug screening nearly anywhere with the benefit of seeing negative results within minutes following the collection.
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.
Industry focused drug screening solutions
Companies like yours can’t afford to compromise. Discover how a comprehensive drug testing program can better support your operations, protect your reputation, and help you meet the emerging demands of your industry.
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To speak to a representative, please call 1.800.877.7484 or click below to complete our form
Products and services
Products and services
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Hair Drug Testing & Screening -
Benefits of Drug Testing Hair vs. Urine -
Hair Testing Certifications & Cutoff Levels -
Hair Specimen Collections for Drug Testing -
Hair Drug Screening Facts & Information -
Oral Drug Testing & Screening -
Benefits of Oral Fluid Drug Screening -
Oral Fluid Testing Certifications & Cutoff Levels -
Oral Fluid Specimen Collections -
Oral Drug Screening Facts & Information -
Oral fluid (saliva) drug testing -
Specimen Validity Testing -
Urine testing -
Urine Testing Overview -
Urine Specimen Collection for Drug Tests -
Urine Testing Certifications & Cutoff Levels -
Urine DOT drug test -
Urine testing FAQs -
Benefits of Drug Testing with Us -
Industry focused drug screening solutions -
Instant drug testing
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Quest® is the brand name used for services offered by Quest Diagnostics Incorporated and its affiliated companies. Quest Diagnostics Incorporated and certain affiliates are CLIA-certified laboratories that provide HIPAA-covered services. Other affiliates operated under the Quest® brand, such as Quest Consumer Inc., do not provide HIPAA-covered services.
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