What Do the Results of the Blood Glucose Test Mean?
Normal fasting blood glucose is between 70 and 100 milligrams per deciliter or mg/dL for people who do not have diabetes. The standard diagnosis of diabetes is made when two separate blood tests show that your fasting blood glucose level is greater than or equal to 126 mg/dL. However, if you have normal fasting blood glucose, but you have risk factors for diabetes or symptoms of diabetes, your doctor may decide to do a glucose tolerance test (see below) to be sure that you do not have diabetes. Some people have a normal fasting blood glucose reading, but their blood glucose rapidly rises as they eat. These people may have glucose intolerance. If their blood glucose levels are high enough, they may be diagnosed with diabetes.
