心包积液时搏出量减少的原因主要是A.心肌收缩力下降 B.心室舒张末期容积减小C.心室射血期缩短 D.等容舒张期缩短

作者: rantiku 人气: - 评论: 0
问题 心包积液时搏出量减少的原因主要是
选项 A.心肌收缩力下降 B.心室舒张末期容积减小C.心室射血期缩短 D.等容舒张期缩短
答案 B
解析 心包积液时,心包内压增高,可妨碍心室充盈,使心室舒张末期容积减少,搏出量降低。

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  • 消息: [程序异常] : MISCONF Redis is configured to save RDB snapshots, but it's currently unable to persist to disk. Commands that may modify the data set are disabled, because this instance is configured to report errors during writes if RDB snapshotting fails (stop-writes-on-bgsave-error option). Please check the Redis logs for details about the RDB error.
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