Blood glucose is the content of glucose in human blood, is the main source of energy to raise the body, the normal glucose content of the standard value is 3.89-6.11mmol / L. When the blood glucose is lower than 2.8mmol / L will appear hypoglycemic reaction, pale, sweating, fatigue, panic and restlessness, hunger and thirst, nausea and vomiting, headache and dizziness, and even coma, shock and endangering the life of the patients, and must be actively rescue treatment! If the patient is suffering from diabetes mellitus, he or she should be given bread, sugar cubes, sugar water, fruits, etc., and if the patient is suffering from diabetes mellitus, he or she should be given hypertonic sugar. If a diabetic patient is below 3.9mmol/L for hypoglycemia, so the minimum for those without diabetes should not be below 2.8mmol/L, and the minimum for diabetic patients should not be below 3.9mmol/L.