V2EX end-tidal

End-tidal

定义 Definition

end-tidal(呼气末的):指一次呼吸中呼气末端(肺泡气体最能代表体内气体交换的时刻)所测得的气体指标,常见于呼气末二氧化碳(end-tidal CO, EtCO)或呼气末氧气(end-tidal O)。

发音 Pronunciation (IPA)

/nd tadl/

例句 Examples

The monitor shows the patient’s end-tidal CO.
监护仪显示患者的呼气末二氧化碳(EtCO)。

A sudden drop in end-tidal CO during anesthesia can suggest reduced pulmonary blood flow or a dislodged airway device.
麻醉过程中呼气末二氧化碳突然下降,可能提示肺血流减少或气道器械移位。

词源 Etymology

end- 表示“末端、最后”,tidal 来自 “tide(潮汐)” 的引申用法,在生理学中常用来描述“像潮汐一样进出”的呼吸气流(如 tidal volume 潮气量)。合起来 end-tidal 就是“呼气潮气的末端”,即“呼气末”。

相关词 Related Words

文学与著作 Notable Works

  • Miller’s Anesthesia(麻醉学经典教材中大量使用 end-tidal,如 end-tidal CO 监测)
  • Clinical Anesthesia(临床麻醉教材常见术语:end-tidal agent concentration、end-tidal CO)
  • Oxford Handbook of Anaesthesia(麻醉袖珍手册中用于通气与气体监测相关条目)
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