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脐血流指数于孕周的正常值是多少

更新时间: 2020-11-04 00:00:00     

脐血流指数于孕周的正常平均值为3.5,上限为4.25,超过此值为异常。脐血流和孕周时间有着密切的关系,一般随着孕周的增加,脐血流呈下降趋势,以上表格为足月孕周待产孕妇的脐血流参数,分正常和松绕和紧绕型。紧绕型要做剖宫产,以免发生产程中窒息。

关键词: 血流 指数 正常值 多少

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