Thank you Peter for the detailed update.
It sounds like the vet has done a good job today.....except for the recommendation of the dry food

and I’m glad you are not following that advice.
If you are going to clean his teeth, you will need to buy a baby toothbrush and toothpaste that is for cats. DONT USE HUMAN TOOTHPASTE. IT IS TOXIC TO CATS.
It will Take time for Monkey to get used to Cleaning his teeth so just start off doing it for a very short time in the beginning.....like a few seconds. I clean Harry’s teeth every night and he has beautiful teeth but I have been doing it since he was 6 months old. It might be easier to start off with a small piece of cloth and just put it on your finger and rub around the teeth so he gets used to something in his mouth. Make sure you clean the piece of cloth each day.
Working out when to give Monkey the food to stop the fast drops takes time to work out but it is good you can see where you could have done it today. It will take time for him to stop bouncing.
When the antibiotics start to work we may see the BGs go down a bit more hopefully. The higher WCC could be contributing to the higher BGs.
Did the vet test the urine for the Ketones and infection?
No, there is no need to add a post each time you update the SS unless you need to communicate something.
Pen Pen is looking great! And you are doing very well with both of them!