The Gastrointestinal Laboratory (GI Lab) at the Texas A&M College of Veterinary Medicine & Biomedical Sciences (CVMBS)
provides specialized testing services to help veterinarians diagnose and treat gastrointestinal diseases in dogs and cats.


Our testing services may help in the management of pets with vomiting, weight loss, diarrhea, loss of appetite, or poor body condition.

All samples must be submitted by a veterinarian. Veterinary specialists in Internal Medicine certified by the American College of Veterinary Internal Medicine are available for consultation to discuss the interpretation of test results with submitting veterinarians and their implications for patient management.

We cannot give advice directly to pet owners due to licensure issues.

Important Testing Update:

Due to a shortage in native canine alpha-1-PI, we had to suspend all fecal alpha-1-PI testing. We are working on the purification of more protein, but at the moment we can not accept any new samples for testing – we apologize for any inconvenience this may cause! Please contact us should you have any further questions.

Shipping updates:

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.

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


Canceled: 2021 Vet KU-Texas A&M Internal Medicine Conference

Centara Grand Beach Resort Phuket

Due to the COVID-19 pandemic, our 2021 conference has been postponed until 2022. New details will be posted once determined.

2021 Vet KU-Texas A&M Internal Medicine Conference: Nephrology and Urology

October 24–28, 2022, in Pattaya, Thailand

Speakers: TBD

Gastrointestinal Laboratory (logo)Gastrointestinal Laboratory
Dr. Jörg M. Steiner, Director
Department of Small Animal Clinical Sciences
Texas A&M College of 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