可导致右心室容量负荷过重A.肺动脉瓣狭窄B.三尖瓣关闭不全C.主动脉瓣狭窄D.二尖瓣狭窄E.心室顺应性下降

作者: tihaiku 人气: - 评论: 0
问题 可导致右心室容量负荷过重
选项

A.肺动脉瓣狭窄
B.三尖瓣关闭不全
C.主动脉瓣狭窄
D.二尖瓣狭窄
E.心室顺应性下降

答案 B
解析 压力负荷是指心脏收缩时承受的负荷。如主动脉瓣狭窄可引起左心室压力负荷过重。

容量负荷是指心脏舒张时所承受的负荷。如三尖瓣关闭不全可引起右心室容量负荷过重。

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