Infusion of sodium chloride and glucose together can improve hypoglycemia and hyponatremia. Sodium chloride is mainly composed of salt, when the body lacks sodium chloride there will be muscle weakness, nausea and vomiting, cardiac arrhythmia, etc. Infusion of sodium chloride helps to replenish salt and improve the above symptoms. Infusion of glucose can improve the symptoms of hypoglycemia, which is mainly manifested as panic, sweating, dizziness and other discomforts. The infusion of sodium chloride and glucose together can replenish both sodium and sugar. Intravenous sodium chloride and glucose are in liquid state, which can replenish water, expand blood volume and raise blood pressure to a certain extent. Too much sodium chloride infusion, too fast, can lead to sodium retention, causing edema, elevated blood pressure, increased heart rate, chest tightness, dyspnea. It is usually contraindicated in patients with heart failure, pulmonary edema, cerebral edema, increased intracranial pressure, and cirrhotic ascites. And the use of glucose may be reactive hypoglycemia, hyperkalemia, phlebitis, edema, rapid heart rate and other adverse reactions. It is contraindicated in patients with cerebral, renal and cardiac insufficiency, low plasma protein, hypertonic dehydration and other diseases. In addition, patients are advised to use sodium chloride and dextrose under medical supervision.