某一青年学生健康体检时,做心电图示心室率5次/分,P-R间期为O.26s,QRS-T波群未见异常心电图的诊断为A.一度房室阻滞B.窦性心动过缓...

作者: rantiku 人气: - 评论: 0
问题 某一青年学生健康体检时,做心电图示心室率5次/分,P-R间期为O.26s,QRS-T波群未见异常 心电图的诊断为
选项 A.一度房室阻滞 B.窦性心动过缓 C.二度Ⅰ型窦房阻滞 D.三度房室阻滞 E.二度Ⅰ型房室阻滞
答案 A
解析 :(1)P-R间期为O.26s,QRS-T波群未见异常符合一度房室阻滞;(2)一度房室阻滞不需要特殊治疗;(3)Ⅰ度房室阻应与E房室结双径路鉴别,后者P-R正常与延长交替出现

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