A veterinarian must submit all samples. Veterinary specialists in internal medicine certified by the American College of Veterinary Internal Medicine (ACVIM) are available for consultation to discuss the interpretation of test results with submitting veterinarians and their implications for patient management.


Video: A Conversation with Hagler Fellow, Dr. John Cullen

Specializing in veterinary pathobiology and toxicologic pathology of the liver, Hagler Fellow John Cullen ranks as one of the world’s most accomplished and distinguished veterinary hepatopathologists. In this interview, Cullen discusses his life, career, and the purpose of his research. (Watch Video)

Video courtesy of the Hagler Institute for Advanced Study at Texas A&M University

Video: Insights from a gastroenterology expert

Jörg M. Steiner, Med Vet, Dr Med Vet, PhD, DACVIM-SAIM, DECVIM-CA, AGAF sits down with dvm360 in a video interview and shares his start in veterinary medicine, and specifically, how he pursued gastroenterology within small animal internal medicine. He also discusses how pancreatitis can differ in dogs and cats, and how it can appear the same. (Watch Video)

Video courtesy of dvm360

Video: Quick tips on understanding and treating pancreatitis

Dr. Steiner explains how most cases of pancreatitis are idiopathic. However, some things could attribute to the development of this disease and it’s important to speak to owners about certain feeding habits. He also discusses a new treatment for acute pancreatitis, conditionally approved by the Food & Drug Administration. (Watch Video)

Video courtesy of dvm360



Packages with the GROUND LIMITED QUANTITY mark are forbidden in the FedEx Express network, as they are forbidden for transport by air. Please completely obscure or remove the GROUND LIMITED QUANTITY mark to be in compliance with IATA and DOT regulations. The mark or any part of it must not be visible at all. Each of these shipments may result in a $75,000.00 fine from the Federal Aviation Administration (FAA).


We cannot accept samples from exotic or agricultural species from outside the United States. This includes feline and canine exotic species. Additional information regarding international shipments is available under our sample requirements and histopathology pages, respectively. If you have specific questions, please contact us directly via email ( BEFORE shipping your samples.


We are not here to receive packages on the weekends and they will sit unattended if delivered on Saturday, Sunday, or on a holiday, even if shipped using FedEx or UPS. Shipping using USPS (US Mail) is never recommended due to delays that will affect your results. The university post office may be closed anytime the university is closed. Anytime we experience delays in receiving sample submissions, turnaround times may be extended. Click here for additional instructions.

Confused about Lipase Assays? Recently, questions have been asked regarding various lipase testing methods for pancreatitis. For more information, please check out our pancreatitis information.


Gastrointestinal Laboratory
Dr. Jörg M. Steiner | Director
Department of Small Animal Clinical Sciences
Texas A&M Veterinary Medicine
& Biomedical Sciences
4474 TAMU | College Station, TX 77843-4474

Maps & Directions | Giving to the GI Lab
Contact Us

Tel: 979.862.2861
Fax: 979.862.2864