IRCT2015061012257N2 IRCT 2015-08-15 Vice chancellor for research(Science and Technology) , Zanjan University of Medical Sciences Determine the effect of the artificial airway of open suctioning based on the standard criteria that need to have suction in the hemodynamic status and also pulmonary patients hospitalized in the intensive care units. Determine the effect of the artificial airway of open suctioning based on the standard criteria that need to have suction in the hemodynamic status and also pulmonary patients hospitalized in the intensive care units. 2014-11-22 anticipated 60 Complete https://irct.ir/trial/12354 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Prevention. 2-3 Patients with airway artificial lung. Intervention 1: Experimental group: After random sampling of the patients, The standard suction method with other standard criteria will be taught to working and volunteer nurses in both control and experimental groups. Then the control group nurses are asked to performed standard suction without consideration of standard criteria of suctioning. The participant nurses of this study have bachelor degree in nursing and their minimum working experience is about three years in ICU ward of Mousavi and Vali Asr hospitals that had passed scientific and standard principles of airway suction in the educational workshops. In the experimental group, the patients will be evaluated in terms of their need to have artificial airway suction based on the standard criteria and in the condition of necessity the suction will be performed in the standard method. Intervention 2: Control group: in the control group, suction will be done based on routine standard criteria.