慢性呼吸衰竭并发右心衰的主要机制是()

A、外周血管扩张、阻力降低,静脉回流量增加
B、慢性缺氧后血容量增多
C、红细胞数目增多,血液粘滞性增高
D、肺部病变,肺毛细血管床大量破坏
E、肺泡缺氧和CO2潴留引起肺小动脉收缩
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正确答案:

E

答案解析:

暂无解析

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D) Want to run with the man.

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