Glycated hemoglobin is the product of the combination of hemoglobin in red blood cells and blood glucose in plasma. There are three types of glycated hemoglobin, glycated hemoglobin a, glycated hemoglobin b, and glycated hemoglobin c. Glycated hemoglobin a is more stable, and the glycated hemoglobin value that is usually measured is primarily the glycated hemoglobin a.
Glycated hemoglobin can remain in the body for 2-3 months, so glycated hemoglobin can reflect the average level of blood glucose over the past 2-3 years. 3 time, so glycated hemoglobin can reflect the average level of blood glucose over the past 2- 3 time period. Glycosylated hemoglobin is important for guiding therapy in patients with diabetes who are taking glucose-lowering medications. Glycosylated hemoglobin is an overall indicator of the level of glycemic control in patients with diabetes. The normal value for glycosylated hemoglobin is 4% to 6%. For patients with glycosylated hemoglobin over 9% it is important to monitor blood glucose to avoid diabetic ketoacidosis or high renal diabetes.