Trial department: Intensive care Unit

Information of patients in the department: patients with Qi incision have very thick sputum, which needs to be drained.

Trial situation: Before doing it, the nursing staff used the tap sputum extraction machine for the patient, tapping the back, and then used the sputum suction tube for the patient, which had to be sucked 10 times a day, and the head nurse operated it personally, and then began to set the pressure of +3-4, and gave the patient a group, and the patient did not have any discomfort. The second group of parameters was adjusted to +3.-4.5 during the use, the head nurse said that there was sputum, and quickly sucked. Nursing staff with suction tube and suction up some sputum, during the period, the blood oxygen has been maintained at about 100, the head nurse said to the director, you can suck out sputum.