【单选题】【消耗次数：1】
人工气道管理（）
①
当患者的气道压较低或自主呼吸较弱以及吸痰时，宜适当增加气囊压
②
当患者体位改变后，宜重新测量气囊压
③
气管插管患者常规执行声门下分泌物引流技术
④
采取半卧位（床头抬高 30°～ 45°）来预防误吸
⑤
以上都是
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