我们平时呼吸,鼻腔和咽喉会对空气进行加温、湿化、过滤,为我们把好“安全关”。气管切开后,失去了湿化功能,就会引起呼吸道黏膜干燥、分泌物黏稠,可能形成浓痰,阻塞气管,引起呼吸困难,也会增加肺部感染几率。因此,气管切开后,对人工气道进行吸痰和湿化也是非常重要的。
\n\n在住院期间,吸痰一般由护士操作。她会根据切口大小,为您选择适合的吸痰管,并调整适合的负压。吸痰管一般都是一次性的。吸痰前后,护士均要洗手、戴无菌消毒手套、口罩。每次吸痰时间控制在 15 秒以内,连续吸痰不会超过 3 次,避免您因为通气不畅出现缺氧。一旦出现,护士会立刻停止吸痰,并给您吸氧[2]。
\n\n湿化常用喷雾给药的方法,一般使用蒸馏水或生理盐水。雾滴可以充分、均匀进入气管和肺。喷雾中可以加用化痰药物,这种方法的好处是用较小的药物剂量、达到更好的局部疗效。
\n\n人工鼻(artificial nose)也是个好助手,可以有效保证呼吸道的湿度及温度,您可以向医生咨询[3]。
\n\n共同撰写:复旦大学附属肿瘤医院 陈嘉莹医生
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