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24周涨多少算正常

更新时间: 2020-11-04 00:00:00     

孕24周羊水最大暗区垂直深度正常为3~8厘米。此孕周胎儿较小,羊水适量,胎儿活动范围较大。羊水在羊膜腔内不断进行液体交换,保持羊水量相对恒定。羊水可以保持羊膜腔恒温,对胎儿有缓冲作用,避免胎儿受压,也可以减少胎动所致的不适感。羊水过多或过少都提示可能有胎儿结构异常,或者其他的妊娠合并症,比如妊娠期糖尿病、胎盘功能减退等。

关键词: 多少 正常

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