After the occurrence of air embolism, you should take the left-sided head-down position as soon as possible to avoid the air embolism entering the pulmonary artery and causing pulmonary artery embolism, which may cause life-threatening problems soon. The pulmonary artery is on the left side of the chest, so the air is lighter than the blood and will float on top of the blood. If you take the left side, the air will relatively speaking to the right side, the right side is actually not so important at this time. In addition, the chest against the head, when taking the head low position higher position, there will be easier to stay in the far place, stay to the direction of the feet, less likely to enter the heart. The reason why the position is taken is that if the amount of air is relatively small to cause air embolism, it will actually be gradually dissolved in the blood, and the amount is not too much, so the remaining air after dissolution will not cause embolism. If the amount is not too much, in other words, if it stays in the blood vessel for a longer time, the greater the possibility of being gradually dissolved or becoming less, the smaller the risk of resuscitation, the greater the possibility of successful resuscitation, so when the air embolism must be taken as soon as possible to the left side of the head low feet high position.