氧气疗法(oxygen therapy)是指通过给氧,提高动脉血氧分压和动脉血氧饱和度,增加动脉血氧含量,纠正各种原因造成的缺氧状态,促进组织新陈代谢,维持机体生命活动的一种治疗方法~([1]),在临床中广泛使用。目前,医院有两种供氧方式,一种是中心供氧系统供氧,一种是氧气筒供氧。为了保证供氧安全,在中心供氧系统的医院,也必须在病房备氧 Oxygen therapy (oxygen therapy) refers to the oxygen through to improve arterial partial pressure of oxygen and arterial oxygen saturation, increase arterial oxygen content, to correct various hypoxia caused by hypoxia, promote tissue metabolism and maintain the body’s life activities A treatment method ~ ([1]), widely used in clinical practice. At present, the hospital has two ways of oxygen supply, one is the oxygen supply system for the center, one is the oxygen cylinder oxygen. In order to ensure the safety of oxygen supply, the oxygen supply system in the center of the hospital, but also must be oxygen in the ward