Hydroxyethyl Starch 40 Sodium Chloride acts to maintain the colloid osmotic pressure of the blood. It is a blood volume supplement. Hydroxyethyl Starch 40 Sodium Chloride is slightly yellow in color and stays in the patient’s blood for a long time after administration, increasing the return of tissue fluid, thus playing a role in increasing the patient’s blood volume, thus improving the patient’s microcirculation disorders. It is mainly used for blood loss, trauma, burns and toxic shock. Infusion reactions may occasionally occur with this drug. A few patients develop urticaria and itching. The dosage should not be too large at one time to avoid spontaneous bleeding. A large amount of input can lead to increased excretion of potassium, should be appropriate potassium supplementation. Use with caution in patients with bleeding tendency and heart failure. Use with caution in athletes. The drug belongs to the prescription drugs, should be used in strict accordance with the instructions of the doctor.