某男孩,6岁,20kg。拟急诊连续硬膜外麻醉下行阑尾切除术。术中吸氧处理阑尾系膜时血压下降,心率减慢,最可能的原因是()A.胃肠痉挛B.缺氧C...

作者: rantiku 人气: - 评论: 0
问题 某男孩,6岁,20kg。拟急诊连续硬膜外麻醉下行阑尾切除术。 术中吸氧处理阑尾系膜时血压下降,心率减慢,最可能的原因是()
选项 A.胃肠痉挛 B.缺氧 C.心功能不全 D.迷走神经反射 E.以上均不是
答案 D
解析

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