异丙肾上腺素治疗哮喘最常见的不良反应是A:心动过速B:中枢兴奋、失眠C:腹痛腹泻D:直立性低血压E:呼吸抑制

作者: rantiku 人气: - 评论: 0
问题 异丙肾上腺素治疗哮喘最常见的不良反应是
选项 A:心动过速 B:中枢兴奋、失眠 C:腹痛腹泻 D:直立性低血压 E:呼吸抑制
答案 A
解析 异丙肾上腺素通过激动支气管平滑肌的β2受体,松弛支气管平滑肌。剂量过大,因兴奋心脏β1受体,可发生心律失常。

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