The number of artificial respirations per minute for adults should be distinguished between different situations. First, the patient is not breathing or is breathing very weakly or inadequately, but has a pulse. The frequency of artificial respiration is once every 5-6 seconds, which is 10-12 times/minute. Second, the patient is not breathing and there is no pulse, that is, cardiac and respiratory arrest occurs. When performing cardiopulmonary resuscitation, before the doctor intubates the patient, the ratio of chest compressions to artificial respiration is 30:2, that is, after 30 chest compressions, open the airway for mouth-to-mouth artificial respiration 2 times, each blowing time should be more than 1 second, you can see obvious chest heaving. If the doctor has intubated the patient, after successful hand pinch balloon or connected to a ventilator assisted breathing, the frequency of artificial respiration is once every 6 seconds, that is, 10 times / minute.