二尖瓣狭窄的病理生理改变哪项是正确的()A.肺血管阻力增高B.轻度病人降低左房压可提高心排血量C.左室舒张期负荷过重D.左房压>25mmHg,...

作者: rantiku 人气: - 评论: 0
问题 二尖瓣狭窄的病理生理改变哪项是正确的()
选项 A.肺血管阻力增高 B.轻度病人降低左房压可提高心排血量 C.左室舒张期负荷过重 D.左房压>25mmHg,100%病人血管外肺水增多 E.瓣口面积<1.0cm时,肺血管阻力急骤降低
答案 D
解析

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