SLGS has you hold the dose if nadirs are in the 90-149 range.
First of all, Charlie is not on what I'd call a high dose. I do remember just one person who had a acrokitty that got up to 55 units and her kitty Lily went into remission, without any treatment. I remember one other who got more into Charlie sized dose and went into remission. Note, I've also seen kitties on the under 10 size dose go into remission, then have to go on insulin again but not be tested for acro/IAAuntil the second time on insulin. Diabetic remission is much more common on acrokitties that are treated. As Angela said, Kokkinoulis's mom posted today about a second diabetic kitty. Kokki's spreadsheet
here if you want to take a look. He was more on a Charlie sized dose. As a matter of fact, kitties that have gone into remission after starting cabergoline tended to be more in the under 10 unit size of dose. Prompt treatment increases the odds of remission.
It they go into remission, there is a lot less testing needed. Even without remission, treatment (if acro) greatly improves quality of life. I don't regret treating Neko for a minute, even though she never went into remission. Most of her diabetic life she was on less than 3 units.
Just so you know, it is unfortunately very common for vets to be reluctant to test. Which is unfortunate, I've seen references saying unregulated cats over a certain number of months on insulin should be tested. And this
2024 web page in New Zealand that recommends all diabetic cats be tested. It's a good read to the end, including summarizing how caregivers of acrokitties felt after just giving insulin or actually treating.