I've been out all day and my Jester is hungry. But he isn't due for his shot until about 7:30PM. I need to get his BG, but if I feed him now, I believe it will screw with the numbers for his PMPS. Would a PMPS more than two hours before the shot be considered valid? I really don't want him to have to wait another two hours (or even an hour) until I feed him. He's skinny as a rail right now.