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早孕多少天有胎心

更新时间: 2020-11-05 00:00:00     

早孕50天左右就有胎心了,因人而异,不过最迟一般不会超过60天的。

一般在17-20周可以在腹部用一般的听诊器听到胎心。胎心在120--160次/分,有时还要快些,也不太规律,到怀孕末期就规律多了。有时会有短暂的停跳,或速度达到180次/分,属正常现象。但是若频繁、长期出现这种现象须及时就医问诊。

关键词: 多少

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