If the infusion of liquid into the air in the clinic, and infusion time has nothing to do with, with the amount of liquid input has a lot to do with. If the infusion of air, a small amount will be absorbed by the body itself, if the infusion of air into the more, especially more than 20 ml, is likely to induce the emergence of the symptoms of air embolism, and even some patients may directly appear cardiac arrest, easy to appear life-threatening. Air embolism is a condition that is treated by first calling the medical staff for prompt treatment, in order to ensure that the gas is absorbed as soon as possible so that the danger can be eliminated. Infusion into the air, due to the specific nature of early detection, you can first close the valve below, if it is not possible to call the nurse in time to give the replacement of static point tube.