皮皮学，免费搜题
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【单选题】
患者，男性，67岁，患喘息性支气管炎，给予氧气雾化吸入，操作过程中不正确的是
A.
严禁接触烟火
B.
嘱患者吸入时作深呼吸
C.
氧流量8L/min
D.
湿化瓶内1/2满
E.
吸入完毕雾化器离口腔后关闭氧气开关
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