Would this make someone diabetic?

This morning my uncle was taking his blood sugar level, I had him take my aunts at random she was eating breakfast & drinking OJ at the time just finishing up, it was 130, would that make her diabetic? Is a reading higher without fasting? What is a normal reading for people without diabetes when they eat anything? It's 70-99 fasting 8 hours, but what is it suppose to be when you are a person that does not have diabetes, and you can eat whatever?