关于羊齿状结晶和椭圆体叙述正确的是（） -题库考试答案搜索网

关于羊齿状结晶和椭圆体叙述正确的是（）

单选题

2021-12-28 05:34

A、羊齿状结晶可用于胎膜早破的确诊
B、孕激素作用下形成羊齿状结晶，雌激素作用下形成椭圆体
C、功血患者流血前宫颈黏液涂片见到羊齿状结晶提示排卵性功血
D、羊齿状结晶如树枝着雪后的形态，分支少而疏
E、有羊齿状结晶时宫颈黏液拉丝度可达10cm以上

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正确答案

E

试题解析

宫颈黏液在雌激素作用下稀薄透明，拉丝度长，干燥后可见羊齿状结晶（主支直而粗，分支细而长），而孕激素作用下黏稠浑浊，干燥后断裂呈椭圆体。功血患者流血前见到羊齿状结晶提示雌激素水平高、波动而缺乏孕激素，故应为无排卵性功血。

标签：西医妇科上海住院医师中医妇科妇产科综合练习妇产科住院医师

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