After 12 hours of fasting, I submitted myself for a fasting blood sugar to measure blood sugar level while on fasting. Then they had me drink from a glass of a very sweet orangy stuff which would supposedly raise my blood sugar level. I waited for 2 hours in the waiting room doing nothing. No food or fluid intake. They will check my blood sugar levels again after drinking that sweet stuff that almost made me puke. My OB had me tested for this to measure my tendency to have a diabetes. I hope the results will be negative.