Veterinary Endocrinology Laboratory

The Veterinary Endocrinology Laboratory (VEL) was created within the Louisiana Animal Disease Diagnostic Laboratory (LADDL) to provide local and regional veterinarians with endocrine testing for dogs, cats, and horses.

As director of the laboratory, Dr. Jon Fletcher reviews, interprets, and reports all results as well as oversees the day-to-day functions of the laboratory. He is the primary point of contact for veterinarians that utilize the endocrinology laboratory and provides phone and email consultation regarding diagnosis, Immulitetreatment, and appropriate follow-up for endocrine diseases.

In addition to providing diagnostic services, the laboratory also participates in clinical endocrinology research as part of the Veterinary Endocrine and Metabolic Disease Laboratory at the LSU School of Veterinary Medicine.

The Veterinary Endocrinology Laboratory now recommends using only serum (NOT EDTA plasma) for the measurement of cortisol (resting/baseline, ACTH Stimulation Tests, Dexamethasone Suppression Tests). This recommendation is based on recent work performed in the laboratory that discovered issues with underfilled EDTA Vacutainers (Lavender top). Please contact Dr. Jon Fletcher with questions or concerns. 

Sample Submission information:

For further information about sample submission or interpretation of results, contact Dr. Jon Fletcher at 225.578.9540 or