A glycosylated hemoglobin of 7.9% is generally considered high, and the normal value for glycosylated hemoglobin is 4% to 6%. Glycated hemoglobin is the product of combining hemoglobin in red blood cells with sugars in the serum through a non-enzymatic reaction. Glycated hemoglobin in the body is normally 4% to 6%. Glycated hemoglobin is closely related to the average blood glucose level over the past 2 to 3 months. Glycated hemoglobin of 7.9% suggests that the patient’s blood sugar control has been poor in the last 2-3 months, but does not reflect the immediate blood sugar level. Glycated hemoglobin measurement can be used to evaluate the degree of control of diabetes treatment. Patients with a glycosylated hemoglobin of 7.9% should seek further medical attention to determine if they have diabetes and follow medical advice under the direction of a physician.