Gayle and Shadoe said:
That's a pretty high dose of insulin, but I can't help much without seeing all the numbers on a sheet.
Someone will need to help you set up a spreadsheet as it's the only way that others can offer help when able to see how the dose was increased, and what numbers were the results.
Gee, what did we do in the days before spreadsheets?
If a newbie or anyone comes here asking for help and reports their numbers, it is insensitive to suggest that no one can help them unless they put their numbers on a spreadsheet. We need more data, yes, but there is no rule here that it must be presented in spreadsheet form.
Sorry for the tangent. Blue, I understand N is fast acting, but those swings between highs and lows are huge and taking their toll. Please suggest that the shelter move to a gentler insulin for this kitty, such as PZI, Lantus or Levemir, the latter two being the most gentle. The goal in managing feline diabetes is not simply to get to double digits, but to remain there or at least below renal threshold for as long a period of the cycle as possible. The best insulins capable of that are Lantus and Levemir. His curves are going to continue to look like this on N I'm afraid. It's difficult to manage for some cats no matter how much you fiddle with the dose, rebound checks, etc.