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孕妇nt多少正常范围
更新时间: 2020-11-05 00:00:00  

孕妇nt正常范围是小于2.5毫米时判断为正常的,如果超过这个数值,就怀疑胎儿有染色体病变。

如果怀孕了染色体病变了,需要做下一步检查,比如无创DNA,或者羊水穿刺,确诊之后,要停止妊娠。

关键词: 孕妇 nt 多少 正常 范围

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