OBJECTIVE To explore the effect of the cluster nursing scheme on the prevention of ventilator-associated pneumonia(VAP)so as to guide the clinical treatment.METHODS A total of 176patients with the mechanical ventilation more than 48hours,who hospitalized the ICU from Jan to Dec 2010,were selected as the cluster group,all the patients were taken such cluster nursing interventions as raising the bed head 30to 45degree,continuous subglottic attract,closed suctioning,application of artificial nose,strengthening...