It is to bring your energy back up so you don't
pass out but normally non-diabetics give blood
so that isn't usually a problem. You didn't say
how long after that you tested. Yes, you should
bolus to bring it down to (160/9.0 ), then it should
go down the rest to your Good number. Unless of
course, it doesn't bother you being at the level for
a while.
Anyways, you're Lucky. I've asked about giving
blood for yrs. But "No, I'm sorry. You are on Insulin".
My Daughter was eager to give blood also when she
turned 17. Again: "I'm sorry but you are under 110 lbs.
(Not by much). So my Hubby and Son just donate.
I believe they give cookies and milk over here.
Thanks For Giving.

It's Always Much Needed.