Sometimes when you take a dose up some cats have a couple of cycles that are higher. It's not understood why it happens, but it does we refer to that as new dose wonkiness (NDW). I was never aware of it with George, but over the years I have seen it in cats.
We know that Chico needed an increase anyway.
See what happens over the next 6 cycles 3days.
The little bit of glucose in his tablet may be affecting the BG... But the process is the same. You must get just need to be aware of that and be mindful of his BG when he comes of the AB.
It doesn't really change the process is the same, for dosing him, while he is on his med, the meds may offer an explanation to what you saw this morning.