[KongchangAI]
Unverified85% confidenceSolutionTime unknown

找胎心的正确路径:孕20周后,仰卧屈膝放松腹部→在肚脐下方到耻骨联合之间区域→根据胎位偏左或偏右下方移动探头→涂足耦合剂缓慢滑动→听到'马蹄声/火车声'样规律快速搏动即为胎心。若5-10分钟找不到不必惊慌,可能是胎位原因,隔一段时间再试

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85%
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Long-term
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