A.房性期前收缩B.交界性期前收缩C.室性期前收缩D.房性期前收缩未下传E.交界性逸搏提早出现P波,在aVR导联直立,Ⅱ、Ⅲ、aVF导...

作者: rantiku 人气: - 评论: 0
问题 A.房性期前收缩 B.交界性期前收缩 C.室性期前收缩 D.房性期前收缩未下传 E.交界性逸搏 提早出现P波,在aVR导联直立,Ⅱ、Ⅲ、aVF导联倒置,PR<0.12s,QRS形态正常
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答案 B
解析 室性期前收缩的特征交界性早搏的P波特点房性期前收缩未下传时P波后见不到相关QRS波房性期前收缩的心电图特征

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