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nt结果一般在多少
更新时间: 2020-11-04 00:00:00  

正常情况下NT检测结果一般是小于3mm为正常,NT检测时间一般是怀孕11-13周加6天,这个时间为NT检测时间。一般早期通过NT检查可以判断胚胎情况,NT检测一般是看胎儿颈后透明带厚度。通过这个厚度来反映胚胎情况,如果大于正常值,绝大多数提示有唐氏儿,或者是有染色体异常的可能性大。

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