Glycated hemoglobin is a product formed when glucose glycosylates the hemoglobin in red blood cells. The average lifespan of red blood cells in the body is about 120 days, so glycated hemoglobin reflects the average blood glucose level over the past 2 to 3 months.
Glycated hemoglobin is mainly affected by plasma glucose levels, but the level of red blood cells themselves also affects the value of glycated hemoglobin. Generally speaking, the normal level of glycosylated hemoglobin is 4-6%. If the glycosylated hemoglobin is greater than 6.5%, it can be used to assist in the diagnosis of diabetes.
Glycated hemoglobin reflects the average level in the last 2~3 months. The degree of elevation of blood glucose and the degree of elevation of glycated hemoglobin do not necessarily match each other exactly, and blood glucose changes dynamically. If diabetic hemoglobin is abnormal, it is also necessary to improve the fasting and 2-hour postprandial blood glucose, fasting and postprandial C-peptide and other tests to assess when diabetes and diabetes mellitus type.
Glycated hemoglobin if more than the normal level is recommended to consult the endocrinology department, to clarify whether the diabetes mellitus, under the guidance of the physician standardized treatment.