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唐氏检查一般是多少周
更新时间: 2020-11-04 00:00:00  

一般是在怀孕14-20周进行唐氏筛查,怀孕23-26周进行三维彩超或四维彩超的排畸检查。如果检查结果都属于高风险,应进一步进行羊水穿刺或脐带血的检查。唐氏筛选只是特殊的孕检手段,并不是每个孕妇都要检查的,主要是针对高龄孕妇以及在孕期有过服药史的孕妇。

关键词: 检查 一般 多少

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