A comprehensive endocrine system checkup for dogs is a key test for early detection of hormonal imbalances. Here’s a summary of essential questions and answers that pet owners should know.



| Item | Key Assessment Function | Suspected Disease |
|---|---|---|
| Blood Glucose | Check for diabetes mellitus | Diabetes mellitus, hypoglycemia |
| T4 and TSH | Assess thyroid function | Hypothyroidism (common in dogs) |
| ACTH Stimulation Test | Check adrenocortical function | Hyperadrenocorticism / hypoadrenocorticism |
| Fructosamine | Assess average blood glucose status over a recent period | Diabetes diagnosis and glycemic management |
Each test targets a specific hormonal abnormality, and because baseline values fluctuate widely and are hard to interpret in isolation, accurate diagnosis often requires adding dynamic tests such as the ACTH stimulation test for a comprehensive interpretation.

Immediate veterinary visit is required if abnormalities are found in the screening results
If blood sugar levels are extremely high or low, severe dehydration, decreased consciousness, or seizures may occur. In such cases, immediate veterinary care is essential for emergency treatment.



A veterinarian who majored in veterinary medicine at Khon Kaen University, Thailand, and completed the IVSA program at North Carolina State University in the United States. Drawing on clinical experience at animal hospitals, he works in the pet healthcare field and is dedicated to building a digital care environment that connects pet parents with veterinarians.
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[1] Notes on Canine Internal Medicine, 4th Ed. (2023). Chapter 5: Endocrine System Evaluation.
[2] Plumb's Veterinary Drug Handbook, 9th Ed. (2022). Endocrine Testing and Interpretation.
[3] American College of Veterinary Internal Medicine (ACVIM). Guidelines for Endocrine Diagnostics in Dogs (2021).