Glycated hemoglobin of 8.2% suggests that a diabetic patient’s blood glucose control has been poor in the last 2-3 months, and needs to be combined with fasting blood glucose, 2-hour postprandial blood glucose, and random blood glucose to determine the specific condition of the disease. Glycated hemoglobin is the glycosylated hemoglobin in the body, and the normal clinical value is between 4% and 6%. The current value of 8.2% is significantly elevated, suggesting poor glycemic control. For diabetic patients, prolonged unstable blood glucose control is prone to neurovascular damage, and significantly elevated blood glucose is also prone to ketoacidosis and even neurological dysfunction. If a significant rise in glycosylated hemoglobin is found along with a significant rise in blood glucose, it is necessary to be admitted to the hospital in a timely manner for medical examination, and use medication under the guidance of the clinician to avoid delays in the condition.