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孕期一共做多少次唐氏筛查
更新时间: 2020-11-04 00:00:00  

唐氏筛查孕期做一次就可以的,在怀孕三四个月的时候进行检查的。

唐氏筛查是唐氏综合征产前筛选检查的简称。目的是通过化验孕妇的血液,检测母体血清中甲型胎儿蛋白、绒毛促性腺激素和游离雌三醇的浓度,并结合孕妇的年龄、体重、孕周等方面来判断胎儿患先天愚型、神经管缺陷的危险系数。

关键词: 孕期 一共 多少

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