何谓心输出量(心排血量)?

作者: rantiku 人气: - 评论: 0
问题 何谓心输出量(心排血量)?
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答案
解析 一次心搏由一侧心室射出的血量称为每搏输出量(每搏量)。成年人在安静平卧时每搏输出量约为70ml。每分钟由一侧心室输出的血量称为每分输出量,即通常所说的心输出量,它等于每搏输出量乘以心率,成人每分输出量为5~6L。

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