What insulin and dose?
What are you feeding?
When in relation to shot time were the BG taken?
Taken at home or at vet? Vet stress can raise BGs by 100 (USA) or more.
Most of us here test or cats blood glucose at home using a human meter. We test before each shot and periodically between shots. We record our reading and other info in a spreadsheet. See:http://www.felinediabetes.com/FDMB/...te-a-ss-and-link-it-in-your-signature.130337/
Here is a link to home testing blood sugarshttp://www.felinediabetes.com/FDMB/threads/hometesting-links-and-tips.287/