预防医疗机构相关肺炎感染，仪器、设备维护、消毒和灭... ... (3) Do not change routinely (in the absence of gross contamination or malfunction) the breathing circuit attached to an HME while it is in use on a patient (1020). CATEGORY II 当病人正在使用有隶属于呼吸管路的湿热交换器的呼吸机时，不建议常规更换(除非它在总污染或故障的情况下缺乏) 4. Oxygen humidifiers 氧气湿化计 b. Change the humidifier-tubing (including any nasal prongs or mask) that is in use on one patient when it malfunctions or becomes visibly contaminated. CATEGORY II 当湿化管路有故障或变得有明显的污染时要更换（包括任何鼻导管或者面罩） ...

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