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My diabetic cat's blood sugar is low. Was skipping insulin right?

Updated on September 23rd, 2025

Pet's info: Cat | Mixed Breed | Male | neutered | 19 lbs

My cat had been in remission for a couple of years but had to go back on insulin as of April 12th. We started at one unit of Lantus with no improvement in his readings. By May 22nd, we had increased him to 5 units. On May 26, his reading was 427, on June 4th it was 342. Last night, June 4th, I checked and his reading was 95 at 8:00pm. At 5:30 am this morning, he received 5 units again. Tonight, before his 5:30 pm injection, I checked his blood, it was 81. I skipped his next dose. Right or wrong?

1 Answer

Most Helpful Answer

Lauren Kennedy, DVM

Answered By Lauren Kennedy, DVM

Veterinarian

Published on June 10th, 2017

It sounds like Kosey's glucose is getting under control pretty well this time around as well which is great news. If you are ever worried the glucose is too low the safest thing to do is to not give any insulin so I think you did the right thing. It sounds like at this time the 5 units may be too much and you can start giving lower doses. To be sure this is the right thing for Kosey I would recommend having a glucose curve done at your vet (where multiple blood glucose readings are taken throughout the day). You may have done this in the past but it can be helpful to do it again while trying to regulate your cat. Good luck!
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