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怀孕可以做多少次b超
更新时间: 2020-11-05 00:00:00  

4次。孕7-9周时,应该要做第一次B超,以此确定妊娠天数,更好地结合月经末次的时间而对预产期提供可靠依据。当然,也要通过B超检查的方式,对于胎心胎芽的形成情况进行确定后,才能判断胎儿是否属于存活的状态。

关键词: 怀孕 可以 多少

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