Because blood sugar levels fluctuate throughout the day and glucose records are imperfect indicators of these changes, the percentage of hemoglobin which is glycosylated is used as a proxy measure of long-term glycemic control in research trials and clinical care of people with diabetes. This test, the hemoglobin A1c or glycosylated hemoglobin reflects average glucoses over the preceding 2–3 months. In nondiabetic persons with normal glucose metabolism the glycosylated hemoglobin is usually 4–6% by the most common methods (normal ranges may vary by method).
Type 2 diabetes is on the rise and is associated with insulin resistance. There are many factors which contribute to developing this disease some of which are modifiable and some of which are nonmodifiable. Modifiable risks which individuals can impact include weight, diet and exercise. It has been reported that gastric bypass patients who have T2DM are “cured” of the disease after surgery. That is a more drastic measure which many people are not ready or willing to consider.
Robert Ferry Jr., MD, is a U.S. board-certified Pediatric Endocrinologist. After taking his baccalaureate degree from Yale College, receiving his doctoral degree and residency training in pediatrics at University of Texas Health Science Center at San Antonio (UTHSCSA), he completed fellowship training in pediatric endocrinology at The Children's Hospital of Philadelphia.