因子Ⅶ缺乏A.延长正常正常正常正常B.延长减少正常正常正常C.正常正常延长正常正常D.正常正常正常延长正常E.延长减少延长延长减少

作者: rantiku 人气: - 评论: 0
问题 因子Ⅶ缺乏
选项 A.延长正常正常正常正常 B.延长减少正常正常正常 C.正常正常延长正常正常 D.正常正常正常延长正常 E.延长减少延长延长减少
答案 D
解析 :凝血因子Ⅷ是只参与外源性凝血系统的因子,因此缺乏时只有PT、延长,而其余几种检查均正常;血友病是先天性凝血因子缺乏症。血友病甲和乙是分别缺乏因子Ⅷ和IX,这些凝血因子只参与内源性凝血过程,所以血友病只有。

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