Test Directory

Welcome to the Quest Diagnostics Test Directory

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

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.

New Tests

New Test Guides

Celiac Disease Comprehensive Panel With Gliadin Antibody (IgG) This reflexing panel of serologic tests is used to help diagnose celiac disease in children and adults. Deamidated gliadin antibody (IgG) is included for patients with IgA deficiency.

Component Testing for Food Allergy This document focuses on the addition of guideline-supported component testing to positive whole crude allergen tests.

Drug Monitoring, Assess Panels, Quantitative, Urine These panels are used to assess baseline medication and drug use when substance use disorder is suspected or before prescribing or changing prescribed drugs with potential for misuse. They are also used to assess drug use in follow-up testing.

Drug Monitoring, Novel Psychoactive Substances (NPS), Qualitative, Urine This panel is used to assess misuse of novel/new psychoactive substances (NPS).

Genital Herpes: Laboratory Support of Diagnosis and Management This Clinical Focus provides information about laboratory tests related to the diagnosis and management of genital herpes.

MYD88 Mutation Analysis This test is used to diagnose Waldenstrom macroglobulinemia (WM)/lymphoplasmacytic lymphoma (LPL) and stratify risk of patients with IgM monoclonal gammopathy of undetermined significance (MGUS).

Metabolic Risk Panel This panel is used to assess early metabolic dysfunction and cardiometabolic risk.

OmegaCheck This test is used to assess risk of major adverse coronary events in patients who are being considered for omega-3 therapy (eg, those with hypercholesterolemia and/or hypertriglyceridemia and those at high risk of cardiovascular disease).

Peanut Component Panel This test is used to assess risk of severe allergic reaction vs mild or localized reaction to peanut exposure.

Vaginitis: Laboratory Testing for Diagnosis and Management This Clinical Focus provides information about laboratory testing to identify infectious causes of vaginitis.