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怀孕多少时间开始长胎心
更新时间: 2020-11-04 00:00:00  

一般情况下,怀孕7-8周开始出现胎心。胎心即胎儿的心跳,可以反映胎儿在宫内的状态,当各种原因引起胎儿缺氧时,胎心会很敏感地出现变化。胎儿正常的胎心率为110~160次/分,胎心率的变化是中枢神经系统正常调节机能的表现,也是胎儿在子宫内状态良好的表现。

关键词: 怀孕 多少 时间 开始

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