인공호흡기 적용환자에서 폐쇄형 기도흡인 전·후 과환기와 과산소 적용의 효과

Abstract

Purpose: The purpose of this study was to identify the effects of hyperventilation and hyperoxygenation before and after endotracheal suctioning using closed-suction system on mechanically ventilated patients. Method: We selected 20 patients who were mechanically ventilated and randomly assigned into 4 groups according to the type of treatments using repeated measure. We applied 3 types of treatment, hyperventilation, hyperoxygenation, hyperventilation+ hyperoxygenation, and no treatment and measured physiologic effects-SpO2, HR and, mena BP. Result: There were no significant differences between the group with no treatment and the group with hyperventilation, before and after endotracheal suctioning using closed-suction system(SpO2(p=.693), HR(p=.970) and mean BP(p=.638)). There were no significant differences between the group with no treatment and the group with hyperoxygenation before and after endotracheal suctioning using closed-suction system(SpO2(p=.693), HR(p=.970) and mean BP(p=.638)). There were no significant differences between the group with no treatment and the group with hyperventilation hyperoxygenation before and after endotracheal suctioning using closed-suction system(SpO2(p=.693), HR(p=.970) and mean BP(p=.638)). Conclusion: As the results, all of the methods, hyperventilation, hyperoxygenation, and hyperventilation hyperoxygenation can be used when nurses apply endotracheal suctioning using closed-suction systems. In case of hypoxemic patients, hyperoxygenation is recommended for prevention of deoxygenation due to endotracheal suctioning using closed-suction systems.