Gastroenterology Testing from Quest Diagnostics

As the world's leading provider of diagnostic testing, information and services, we offer:

A Full Gastroenterology Test Menu
Our clinical and pathology services assist physicians in the diagnosis and management of a broad range of digestive diseases. These conditions include:
Inflammatory bowel disease
Celiac disease and gluten sensitivity
Colorectal and other gastrointestinal cancers
Peptic Ulcer Disease (H. pylori)
Urea Breath test
Stool antigen
Liver Disease and Hepatitis

We also offer:
Convenient, consolidated viral load, genotyping and screening test ordering
An extensive molecular test menu for both HBV and HCV, including HEPTIMAX™ Quantitative HCV RNA Testing

Access and Convenience
A national network of laboratories with locations in or near all major cities and esoteric testing laboratories on both coasts.
Convenient specimen collection options, including in-office phlebotomy and courier services and more than 2,000 conveniently located patient service centers across the country

Innovation and Quality
Available consultation with our Quest Diagnostics Nichols Institute scientific staff, one of the most experienced and comprehensive clinical diagnostics teams in the world
Six Sigma methodology, which helps us measure results and identify ways to continually improve the processes we use in every part of our business

Online Resources for Healthcare Professionals
Obtain test ordering codes and specimen requirements from our online Test Menu
Learn about gastroenterology test selection, utilization, and interpretation in our Test Selection and Interpretation Guide
Simplify test ordering and results reporting with our connectivity solutions

Online Test Information for Your Patients
Your patients can learn about health conditions and laboratory tests in our Patient Health Library.

Contact a Quest Diagnostics Sales Representative, learn more about our testing services, and become a client
Contact a physician sales representative
Contact a hospital sales representative or learn about our complete hospital offerings

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Contact a sales representative to learn more about our testing services or to become a Quest Diagnostics client.