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[{"id":1,"group":"1","txt":"一、慢性阻塞性肺疾病<br>诊断公式:<color=red>中老年人</color>+反复<color=red>咳</color>嗽咳<color=red>痰、喘</color>息数年或数十年+<color=red>桶状胸/语音震颤减弱/过清音/呼吸音减弱+肺功能FEV₁/FVC70%</color>。<br>二、吸痰<br>(一)概述<br>指经口、鼻腔、人工气道将呼吸道的分泌物吸出,以保持呼吸道通畅,预防吸入性肺炎、肺不张、窒息等并发症的一种方法。临床上主要用于<color=red>年老体弱</color>、危重、昏迷、麻醉未清醒前等各种原因引起的<color=red>不能有效咳嗽、排痰者</color>。<br>吸痰装置有中心吸引器(中心负压装置)、电动吸引器两种,它们利用<color=red>负压吸引原理</color>,连接导管吸出痰液。医院设有中心负压装置,吸引器管道连接到各病室床单位,使用时只需连接吸痰导管,开启开关,即可吸痰,十分便利。<br>电动吸引器由马达、偏心轮、气体过滤器、负压表、安全瓶、贮液瓶组成。安全瓶和贮液瓶可<color=red>贮液1000ml</color>,瓶塞上有两个玻璃管,并通过橡胶管相互连接。接通电源后马达带动偏心轮,从吸气孔吸出瓶内空气,并由排气孔排出,不断循环转动,<color=red>使瓶内产生负压</color>,将痰液吸出。"},{"id":2,"group":"1","txt":"(二)操作目的<br><color=red>1.清除呼吸道分泌物,保持呼吸道通畅。</color><br><color=red>2.促进呼吸功能,改善肺通气。</color><br>3.预防并发症发生。<br>(三)注意事项<br>1.吸痰前,检查电动吸引器性能是否良好,连接是否正确。<br>2.严格执行无菌操作,<color=red>每次吸痰应更换吸痰管。</color><br>3.<color=red>每次吸痰时间15秒</color>,以免造成缺氧。<br>4.吸痰动作轻稳,<color=red>防止呼吸道黏膜损伤</color>。<br>5.痰液黏稠时,可配合叩击、蒸汽吸入、雾化吸入,提高吸痰效果。<br>6.电动吸引器连续使用时间不宜过久;<color=red>贮液瓶内液体达2/3满时应及时倾倒</color>,以免液体过多吸入马达内损坏仪器。贮液瓶内应放少量消毒液,使吸出液不致黏附于瓶底,便于清洗消毒。<br>7.如果病患在吸痰时,临床上有明显的血氧饱和度下降的问题,建议吸痰前提高氧浓度。<br>8.建议成人和儿童使用的吸痰管直径要小于他们使用的气管插管的直径的50%婴儿则要小于70%。"},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""},{"id":0,"group":"","txt":""}]