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nt值范围多少正常
更新时间: 2020-11-05 00:00:00  

一般nt数值的正常值是在2.5毫米,而且通过nt检查的话,准确率是比较高的,一般nt检查的话是需要在10周到15周之间。nt数值是可以反映胎儿在肚子里是否有畸形的情况,如果反复测量高于正常值的话,那么是需要做羊水穿刺,进一步确定胎儿是否有畸形的。

关键词: nt 范围 多少 正常

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