椎管内麻醉时手术病人出现低血压主要原因是()A.血容量不足B.血管扩张C.心脏抑制D.A+CE.B+C

作者: rantiku 人气: - 评论: 0
问题 椎管内麻醉时手术病人出现低血压主要原因是()
选项 A.血容量不足 B.血管扩张 C.心脏抑制 D.A+C E.B+C
答案 B
解析

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