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唐氏综合征风险率(ds)1:527正常吗?
唐氏综合征风险率(ds)1:527正常吗?
唐氏综合征风险率(ds)1:527正常吗?
2025-03-15 23:50:10
推荐回答（1个）
回答1：
临界值为1/275。危险性低于1/275，就是低危，胎儿出现唐氏症的机会不到1％。但如果危险性高于1/275，就是高危，应进一步做羊膜穿刺检查或绒毛检查。
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