Extreme low yesterday and fasting today for a test

Yesterday, after a day of shopping and having lunch at the mall (all crappy choices) I didn't eat supper.
During the night my blood sugars went to 1.4(25.27). I had juice and a glucose tablet. It took awhile, but my sugars finally went up and I felt it was safe to go to bed.
This morning, they were a little higher than I like, but that's life.
Now today, I have my doctor's appointment at 10:00 am, and an MRI at 1:00. I've had my usual breakfast with a protein shake(hopefully to slow the sugar absorbtion?)
I'm not supposed to eat or drink anything after 9:00.
Any suggestions on what to bring for a post MRI snack?
thanks