A random glucose test is one method for measuring the amount of glucose or sugar

circulating in a person's blood.If you had a fasting blood glucose test, a level between 70

and 100 mg/dL (3.9 and 5.6 mmol/L) is considered normal. If you had a random blood

glucose test, a normal result depends on when you last ate. Most of the time, the blood

glucose level will be 125 mg/dL (6.9 mmol/L) or lower.