患者女陛,63岁,冠心病。因发作头昏、胸闷就诊。心电图如下图所示,应诊断为A.窦性心动过缓B.多源房性心动过速C.心房颤动合并三度房室传导阻滞...

作者: rantiku 人气: - 评论: 0
问题 患者女陛,63岁,冠心病。因发作头昏、胸闷就诊。心电图如下图所示,应诊断为
选项 A.窦性心动过缓 B.多源房性心动过速 C.心房颤动合并三度房室传导阻滞,室性逸搏心律 D.心房颤动合并三度房室传导阻滞,交界性逸搏心律 E.心房扑动
答案 D
解析 :心电图显示窦性P波消失,代之以节律不齐、大小、形态各异的颤动波。RR间距规则,心室率约47次/分,V导联QRS波群呈rs型,时限为0.10s,为交界性逸搏心律。持续性心房颤动患者,如心律突然整齐,应考虑合并三度房室传导阻滞可能。
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