V2EX hypocapnia

Hypocapnia

释义 Definition

Hypocapnia(低碳酸血症 / 低二氧化碳血症):指动脉血中二氧化碳分压(PaCO)低于正常的状态,常见于过度通气(呼吸太快或太深)导致二氧化碳排出过多。临床上可能引起头晕、手脚发麻、胸闷,严重时可出现肌肉痉挛等。(该词在医学语境最常用;也可见于生理学与麻醉/重症医学讨论。)

发音 Pronunciation

/hapokpni/

例句 Examples

She developed hypocapnia after hyperventilating during a panic attack.
她在惊恐发作时过度换气,随后出现了低碳酸血症。

In mechanically ventilated patients, excessive minute ventilation can cause hypocapnia, which may reduce cerebral blood flow and worsen neurological outcomes.
在机械通气患者中,分钟通气量过大可能导致低碳酸血症,从而降低脑血流量并可能加重神经系统结局。

词源 Etymology

来自**hypo-**(“低、少、不足”)+ **capn-**(源自希腊语 kapnos,意为“烟”,在医学里引申用于指“二氧化碳”相关概念,如 capnia)+ -ia(表示状态/疾病)。整体字面义为“二氧化碳不足的状态”。

相关词 Related Words

文学与经典著作 Literary Works

  • Harrison’s Principles of Internal Medicine(《哈里森内科学》):在呼吸生理、酸碱平衡与呼吸衰竭相关章节中讨论低碳酸血症及其后果。
  • Guyton and Hall Textbook of Medical Physiology(《盖顿与霍尔医学生理学》):在通气调节与二氧化碳对血流影响的内容中涉及 hypocapnia。
  • Miller’s Anesthesia(《米勒麻醉学》):在麻醉通气管理、过度通气与脑血流调控相关段落中出现该术语。
  • Principles of Critical Care(《重症医学原理》):在机械通气策略、酸碱紊乱与脑保护通气讨论中使用该词。
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