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多少周开始胎盘成熟度1级
更新时间: 2020-11-04 00:00:00  

胎盘成熟度1级多见于孕29-36周,此时还不好预测生产时间,还应以预产期作为参考。胎盘成熟度胎盘会随着孕期的进行而逐渐成熟,成熟到一定程度时功能就会减退,而胎盘成熟度分级就是用来衡量胎盘成熟程度的一项标准。

关键词: 多少 开始 胎盘 成熟度

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