It depends on what they were looking for. To have diabetes you need to have a fasting blood sugar of 125 or more. Above a hundred it is pre diabetes. Also there is a hemoglobin A1C level that should be checked. Above 6.5 is diabetes. Above 5.7 is pre diabetes. They can also do a glucose tolerance test in which you drink a sweet glucose drink and blood is drawn after certain intervals. This one takes a few hours. It is commonly given to pregnant women to test for gestational diabetes. So if they did not preform a fasting blood draw they were probably not looking for it.