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孕24周的头围是多少正常
更新时间: 2020-11-05 00:00:00  

孕24周:双顶径的平均值为6.05士0.50;

头围:220mm

腹围的平均值为18.74±2.23cm

股骨长的平均值为4.36±0.51cm

月经周期正常情况下,一般的孕周是按末次月经来算的,根据B超数据来推算的孕周,相差在2周左右都是正常的。因为B超数据有一定的主观性。如果月经周期长,按照b超推算孕周。

关键词: 多少 正常

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