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Outage notice:

Due to the global information outage that occurred Friday, Quest is taking swift action to respond, recover and restore our operations. Our Patient Services are operating with reduced capacity so you may experience longer wait and service times. Our Customer Contact teams are currently unavailable. We appreciate your patience as we work toward returning to normal operations. 


Lab tests by specialty

Strengthen your focus on value-based care with our comprehensive test menu

Meeting physicians’ needs, improving the patient experience, and controlling costs all stem from the same place: access to a broad range of routine, esoteric, and advanced tests that can help you efficiently meet the collective needs of your health system. With over 3,500 laboratory tests available, searchable via our online test directory, and advanced clinical algorithms that can help you narrow in on the right tests and guide optimal test utilization more easily, your lab can provide more value than ever.

Looking to complement your lab operations? You’ll find the test—and the expertise you need—right here

Some conditions are easier to diagnose and confirm through a simple test. Others take more skill, expertise, or collaboration. When you’re dealing with a challenge, you’ll find us ready to help you find the answer as quickly and efficiently as possible. Choose an area of specialty from the Quest test menu below to narrow your search for the right diagnostics tool.

Extensive esoteric testing capabilities

The right test makes all the difference. You'll find 1,500+ esoteric testing options, including neurology, oncology, women's health, and more. Our advanced support drives precision medicine, including FDA-cleared and/or approved companion diagnostics. Help physicians make the right diagnosis faster and get to treatment sooner. Everyone depends on you to get the diagnostics right, and you can depend on us.

Why work with us? We share the same goals

Quality care needs fast answers, so we’ve built an extensive national lab network including 6 esoteric centers of excellence, as well as regional and rapid response labs throughout the country, to provide superior quality and reliable turnaround times. Every lab uses a shared framework rooted in operational excellence and medical expertise to continuously ensure quality at every step.

Lab stewardship

Discover how to transform your lab from a clinical support function to a strategic advantage through lab stewardship.

Learn more

See our new tests

 Know which test you need? Go right to it.

Save time by selecting the test from our full Quest menu.

Find the right test