Stress Hyperglycaemia in Cats: Why One High Reading Isn't Always Diabetes
Why stress can raise a cat's glucose at the vet, how feline diabetes is distinguished from stress hyperglycaemia, and why repeat testing may help.
Stress hyperglycaemia in cats: why one high reading isn't always diabetes
Quick answer
A vet visit can raise a cat's blood glucose temporarily. Because cats often show this stress response, vets may use repeat testing, fructosamine, urine testing and calm home readings alongside clinical signs rather than relying on one number.
Why the clinic can change the reading
Travel, handling, unfamiliar smells and restraint can all be stressful. The resulting rise can make diagnosis harder than it is in dogs.
How vets distinguish the possibilities
Your vet may combine repeat blood tests with fructosamine, urine testing and home monitoring. The aim is to understand the pattern and the wider clinical picture.
What this means for owners
If your vet says that retesting is needed, it does not mean your concerns are being dismissed. Keep notes on thirst, urination, appetite, weight and energy, and ask what to record at home.
When to contact your vet
Follow the testing plan your vet gives you. Urgent signs such as vomiting, food refusal, collapse or severe lethargy need prompt veterinary attention regardless of whether stress may be affecting glucose.
Read the cat diabetes symptoms guide, the fructosamine guide and the FAQ.
When to contact your vet
- Contact your vet promptly if your pet’s symptoms, appetite, drinking, urination, behaviour or glucose readings change unexpectedly.
- Ask your vet for advice before changing insulin, food, exercise or any other part of your pet’s routine.
- Seek urgent veterinary care for collapse, seizures, severe weakness, repeated vomiting, or suspected hypoglycaemia or diabetic ketoacidosis.
Quick answers
What's Next?
Continue your diabetes management journey with these recommended next steps.
Keep your care organised
Mello is being built for calm, consistent tracking before the app launches.
Mello is a tracking and communication tool, not a substitute for veterinary advice. Always consult your vet for medical decisions about your pet.
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