The normal values of blood glucose are divided into, fasting blood glucose and two-hour postprandial blood glucose. The normal range of fasting blood glucose is 3.9-6.1 mmol/L. The normal range of 2-hour postprandial blood glucose is less than 7.8 mmol/L. Impaired fasting blood glucose means blood glucose between 6.1-7 mmol/L, and impaired glucose tolerance blood glucose is between 7.8-11.1 mmol/L.
Make sure you fast for at least 8 hours before monitoring fasting blood glucose, preferably from 6-8 am, without eating or taking medication. Ensure a normal diet before the 2-hour postprandial glucose test. Blood sugar abnormalities are also divided into physiological and pathological blood sugar elevation and decrease. Physiological blood glucose elevation is often caused by eating a lot of food with high sugar content before the test, drinking alcohol or being under stress. Pathological elevation of blood glucose is seen in diabetes mellitus. Physiological low blood glucose is seen in people with chronic hunger, continuous strenuous exercise, malignant tumors and other malignant diseases. Pathological lowering of blood sugar is common in endocrine diseases such as adrenal gland and pituitary gland, islet cell tumor, etc. Severe hypoglycemia can lead to coma and even life-threatening. Therefore, once abnormal blood sugar is detected, you need to visit a hospital to clarify the cause and give an effective treatment plan as early as possible.