I hope you had a good day at school today!
Here's what I'm thinking about your three options for tonight:
1. If you get a pre-shot that is below 200, do NOT give any insulin.
2. If you get the pre-shot test and it's over 200, AND you can get a second test at +3 or later, then I think you could give 1u.
3. If you get the pre-shot and it's over 200, BUT you can't/don't want to get a second test at +3 or later, then stay at .8u for now.
Here's the reasoning:
First, if the pre-shot test is below 200, then you don't give insulin. You learned that the other evening.
Second, if you increase the dose, you need to be able to monitor (get extra tests) to make sure that the blood glucose doesn't go too low. Whenever you raise the dose, you can't predict the results, because even a drop of insulin can make a difference. Insulin is a very powerful hormone.
Third, if you can't or don't want to do extra tests, then you need to keep the dose the same for now, in order to keep Chloe safe.
Since there are three different options, it might be confusing. I'll be around this evening at your shot time, so if you want to post your pre-shot results, and what you're thinking for the dose, I'm happy to clarify any of this.