I'm exhausted trying to figure this out...

[Lynda and Louis]

Yes, I figured as much. I will test him and make the call. Is it safe to say that unless I see reading under 90, that I should stay with the 2.75?

 

[Deb & Wink]

Change your thread title and ask for help if you get a low number, <200 at PMPS.
Hopefully, there will be someone on to help you then.
Basic guidelines when following SLGS method with Prozinc are as follows. Quoting directly from the protocol, over in the Prozinc ISG forum:

Q4.4. My cat's pre-shot level was way below the usual value. Should I give the injection?
A4.4. There's no hard and fast rule, but if you don't have data on how your cat responds to insulin, here are some general guidelines.

• Below 150 mg/dl (8.3 mmol/L), don't give insulin.
• Between 150 and 200 (8.3-11.1 mmol/L), you have three options:
  • a.) give nothing
  • b.) give a token dose (10-25% of the usual dose)
  • c.) feed as usual, test in a couple of hours, and make a decision based on that value
• Above 200 (11.1 mmol/L) but below the cat's normal pre-shot value, a reduced dose might be wise.
• In all cases, if you are reducing or eliminating insulin, it's wise to check for ketones in the urine.
• Above the normal pre-shot value, give the usual dose, but if the pre-shot value is consistently elevated, it's a good idea to schedule a full glucose curve to see whether a change in dose or insulin is appropriate. In most cases, the target "peak" value should not be below 100 mg/dl (5.6 mmol/L), and for some cats it might be higher.