下述哪项不是法乐四联症的病理生理改变A.双侧心室峰压相等B.继发性红细胞增多C.肺循环血量增多D.右心室功能不全E.肺的侧支循环增多

作者: rantiku 人气: - 评论: 0
问题 下述哪项不是法乐四联症的病理生理改变
选项 A.双侧心室峰压相等 B.继发性红细胞增多 C.肺循环血量增多 D.右心室功能不全 E.肺的侧支循环增多
答案 C
解析 :肺动脉狭窄引起的肺血流量减少,而肺的侧支循环增多,缺氧代偿性红细胞增多。

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