二尖瓣狭窄大咯血首选治疗为A.西地兰B.呋塞米(速尿)C.维生素K静脉注射D.血管升压素(垂体后叶素)E.地西泮(安定)

作者: rantiku 人气: - 评论: 0
问题 二尖瓣狭窄大咯血首选治疗为
选项 A.西地兰 B.呋塞米(速尿) C.维生素K静脉注射 D.血管升压素(垂体后叶素) E.地西泮(安定)
答案 B
解析 :二尖瓣狭窄大咯血多因肺静脉压突然升高使支气管静脉破裂所致,速尿可有效降低肺静脉压而起止血作用。

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