测量QT间期一般应选择的导联是A.V导联B.V导联C.V导联D.Ⅱ导联E.V导联

作者: rantiku 人气: - 评论: 0
问题 测量QT间期一般应选择的导联是
选项 A.V导联 B.V导联 C.V导联 D.Ⅱ导联 E.V导联
答案 B
解析 :V导联除T波终点清楚外,QRS波群的起点与V接近,一般较V导联提前约20ms。因此,在V导联测量最能反映实际的QT间期。

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