Glucose Monitoring Devices You can monitor your blood sugar at home with one of a variety of devices that use a small sample of blood. Hypoglycemia (Low Blood Sugar) Hypoglycemia is most often seen as a complication of diabetes and is sometimes referred to as "insulin reaction." Why Your Health Care Provider Tests Your Blood Sugar In adults, a screening blood sugar test is generally used to determine if your blood sugar is too high. For adults, having an elevated blood sugar usually will not give you symptoms and may indicate a pending or current problem with type 2 diabetes. Diabetes: Why Measure Glucose at Home Many people with diabetes who use insulin test their glucose two to four times daily. By tracking changes in the readings, you can tell when your blood glucose goes up or down.