Petco Text Logo
Petco Pet Logo

  • Two Easy Ways to Start Earning Rewards!

My large 11-year-old cat has high glucose. Could it be diabetes?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Male | neutered | 11 years and 8 months old | 30 lbs

My cat is neutered, 11 y/o & weighs approx 25-30lbs normally. He's a BIG tomcat. His glucose level ranges from 200-350. Is it normal for a larger cat to have higher glucose levels than a regular 10lb cat?

2 Answers

Most Helpful Answer

Image profile

Answered By Dr. Dayna, DVM, CVA

Veterinarian, Certified Veterinary Acupuncturist

Published on September 12th, 2017

Glucose levels in cats should not change based on size. However, levels can increase with stress but anything over 300 is very concerning for diabetes. Several tests can be done to diagnose diabetes. A fasting blood glucose level in addition to a urinanalysis will diagnose most cats, but occasionally a test called fructosamine may be needed. Overweight mid aged male cats are more predisposed to diabetes than others. It sounds like you may need to visit with your veterinarian to make a plan for BB.

Vote icon

2Pet Parents found this answer helpful

Other Answers

  • Image profile

    Answered By Vanessa Yeager DVM MPH

    Veterinarian

    Published on

    Hi and thank you for your question on Petco Pet Education Center, formerly Petcoach! No- a larger body mass does not indicate a wider normal glucose range. 200-350 is very high and if glucose is also in the urine as well, BB is considered diabetic. Normal glucose levels for cats no matter how much they weigh should be between 75-175mg/dL normally. I hope this has helped you!

    Vote icon

    1Pet Parents found this answer helpful

See More Answers

Related Questions

Petco Pet Education Center
Health & Wellbeing
What to do if my cat has a small hole with pus coming from its ear?
Is your cat's ear hole oozing pus? A Petco vet explains potential infections like abscesses from bites, advising immediate vet care, antibiotics, and recovery.
Updated on September 23, 2025
Petco Pet Education Center
Health & Wellbeing
My senior dog has recurring pancreatitis. How can I manage his diet?
Is your 13-year-old dog facing recurring pancreatitis? Get expert vet guidance on managing chronic inflammation, diet, and lifestyle tips for their well-being.
Updated on September 23, 2025
Petco Pet Education Center
Food & Nutrition
My cat is chunky. What food and steps can I take to help him lose weight?
Is your cat overweight? A certified vet offers guidance to help your tubby tabby lose weight. Get essential diet and food recommendations to slim down your cat!
Updated on September 23, 2025
Petco Pet Education Center
Health & Wellbeing
Cat sick and still has fleas after vinegar treatment. What now?
Cat still scratching and not eating after vinegar flea treatment? A certified vet reveals why it fails and offers effective solutions for your cat and home.
Updated on September 23, 2025
Petco Pet Education Center
Health & Wellbeing
My kitten had ringworm. Vet says in blood, untreatable, no meds?
Confused about your 6-month-old kitten's ringworm diagnosis, oral meds, or vaccinations? A trusted vet offers a second opinion on your pet's health concerns.
Updated on September 23, 2025
Petco Pet Education Center
Health & Wellbeing
My cat has a weepy wound she keeps licking. Does it need stitches?
Is your cat's weepy wound concerning you? A certified vet offers guidance on home care, when to disinfect, and signs to watch for before seeking professional help.
Updated on September 23, 2025
image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Book Now

Sponsored