Your veterinarian will examine the pet for the existence of the signs and symptoms of exocrine pancreatic insufficiency. The diagnosis of the EPIis mainly depends on the symptoms of EPI evinced on the patients that include nausea, vomiting, steatorrhea (oily stools), intractable pain and involuntary weight loss.
Pancreatic biopsy only confirms the EPI. Though, indirect tests are employed to preclude the need for surgery. A number of tests have been used:
- 24 hour fat balance study
- Oral fat tolerance test
- Benzoyl-tyrosyl para-amino benzoic acid (BT-PABA) test
- Fecal proteolytic activity (“fecal trypsin”)