Test Directory

Welcome to the Quest Diagnostics Test Directory

Preview a major upgrade to the Test Directory

Experience our completely redesigned Test Directory. With a fresh look and smarter search, finding the clinical insights you need has never been easier. Explore the Beta


Search for tests and educational resources with confidence. Filter by specialty or test category, and compare tests side-by-side.

Watch the Video | Learn More | Frequently Asked Questions | Specimen Collection & Transport Guide | Test Guides
We'd love your feedback! Take a brief survey.

Search for Tests, Diseases, or Conditions
Improve your search experience by specifying your Service Area. Look it up by Zip Code, or if you have a Quest Account number we'll figure it out.
Ordering from a Quest Diagnostics affiliate?
CLICK HERE
Our Test Directory includes detailed information, guides and references for many of our tests. This includes test and result codes, specimen collection requirements, specimen transport considerations, and methodology.
Recently Viewed

New Tests

Influenza A and B RNA, Qualitative RT-PCR, Conjunctiva with Reflex to H5

Influenza A and B RNA, Qualitative RT-PCR, Respiratory with Reflex to H5

Mycoplasma genitalium rRNA, NAAT with Reflex to Macrolide Resistance

Pediatric Autoimmune Encephalitis Evaluation with Reflexes, CSF

Pediatric Autoimmune Encephalitis Evaluation with Reflexes, Serum

ThinPrep® Automated Pap Reflex HPV DNA(16,18, 12 Other High Risk) and CT/NG

ThinPrep® Automated Pap Reflex HPV(16,18,12 Other High Risk)and CT/NG,Trich

ThinPrep® Automated Pap and HPV (16,18, 12 Other High Risk)and CT/NG, Trich

ThinPrep® Automated Pap and HPV DNA (16,18, 12 Other High Risk) and CT/NG

New Test Guides

Hypercortisolism in Difficult-to-Control Type 2 Diabetes: Laboratory Support for Initial Evaluation  This topic brief provides an overview of laboratory tests used in the initial evaluation of hypercortisolism among patients with difficult-to-control type 2 diabetes.

IGF-1, LC/MS  This test is used to assess growth disorders in symptomatic children and adults and to monitor response to therapy.

Laboratory Testing for Diabetes Diagnosis, Risk Assessment, and Management  This test guide discusses the use of laboratory tests for general screening and diagnosis of prediabetes and diabetes; it also provides additional information on diabetes risk assessment and monitoring glycemic control and complications in individuals with diabetes.

Pediatric Encephalitis With Reflexes, Serum and CSF  This test is used to diagnose autoimmune encephalitis in children.

Recently Viewed
New Test
New Test Guides
Have a case specific question or need help selecting the correct test?
Consult with our medical specialists
Access Expert Insights &
Educational Content