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正常pr是多少正常范围
更新时间: 2020-11-04 00:00:00  

正常pr是120-200ms,PR间期代表心房开始除极至心室开始除极的时间。

在幼儿及心动过速的情况下,PR间期相应缩短。在老年人及心动过缓的情况下,PR间期可略延长,但一般不超过0.22s。

关键词: 正常 pr 多少 范围

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