Gastrointestinal Laboratory

Holiday updates:

The GI Lab will close early Friday Dec 23 and remain closed through Monday Dec 26.

We will be open on Tuesday Dec 27 through Dec 30. FedEx and UPS will not deliver on Dec 26 and January 2.

Please remember we are never here on weekends to accept shipments so plan and ship your samples with that in mind,as well as the FedEx and UPS holiday schedule.


The GI Lab at Texas A&M University provides specialized testing services to help veterinarians diagnose and treat gastrointestinal diseases in dogs and cats.

These tests 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 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.

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