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胎儿30周的股骨长是多少
更新时间: 2020-11-04 00:00:00  

股骨长标准数值一般情况下是从孕13周开始计算,因为孕早期(孕1-12周)是受精卵从开始着床,到胎儿各生殖器初步发育的过程,此后各脏器才趋向完善。因此要检查股骨长建议最好从13周开始。孕30周胎儿股骨的标准值是5.74左右。专家表示在孕30周以后,允许有上、下两周的误差。

关键词: 胎儿 股骨 多少

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