Glucose tolerance test generally refers to glucose tolerance test, glucose tolerance test 2-hour blood glucose 13.6 mmol/L is not normal and high. Glucose tolerance test is a test to confirm the diagnosis of diabetes, which can understand the function of pancreatic beta cells and the body’s ability to regulate blood sugar. Blood is drawn during fasting and one, two and three hours after taking the glucose solution to test blood glucose. The normal two-hour blood glucose concentration should be less than 7.8 mmol/L. Therefore, the glucose tolerance test 2-hour blood glucose of 13.6 mmol/L is abnormal and high, and has reached the criteria for diagnosing diabetes mellitus (two-hour blood glucose of more than 11.1 mmol/L after the glucose tolerance test). It is recommended to go to the hospital as soon as possible in case of abnormal blood glucose values, so that the doctor can make a judgment and give a treatment plan.