知识点：HCG.高峰HCG妊娠期间分泌量达高峰的时期是A.妊娠4-6周B.妊娠8 - 10周C.妊娠12 - 14周D.妊娠16-18...

作者: rantiku 人气: - 评论: 0

问题知识点：HCG.高峰 HCG妊娠期间分泌量达高峰的时期是 A.妊娠4-6周 B.妊娠8 - 10周 C.妊娠12 - 14周 D.妊娠16-18周 E.妊娠20 - 24周

选项

答案 B

解析受精后6日开始分泌少量HCG,至妊娠8-10周达高峰,持续10日左右迅速下降，持续至分娩。分娩后无胎盘残留，于产后2周消失。

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