天气预报 > 其他 > 孕期24周羊水多少正常值是多少
孕期24周羊水多少正常值是多少
更新时间: 2020-11-04 00:00:00  

怀孕24周羊水正常值为14.3-15.9厘米。怀孕初期羊水由妈妈血液经由胎盘,通过绒毛膜及羊膜渗透进入羊膜腔中形成,也经由脐带和胎盘表面的华尔通胶产生。羊水的成分因而与母体血浆相似,但蛋白质含量与钠离子浓度稍低。

关键词: 孕期 羊水 多少 正常值

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