V2EX pao2

PaO2

Definition / 释义

PaO2 指“动脉血氧分压”,也就是动脉血液中氧气的压力(通常以 mmHg 或 kPa 表示),是评估氧合状况与呼吸功能的重要指标(常见于动脉血气分析 ABG)。在医学语境中常与 SaO2/SpO2、PaCO2、FiO2 等一起讨论。

Pronunciation (IPA) / 发音(IPA)

/pi e o tu/

Examples / 例句

The patient's PaO2 is low.
病人的动脉血氧分压(PaO2)偏低。

Despite high-flow oxygen, her PaO2 remained poor, suggesting severe ventilationperfusion mismatch.
尽管给予高流量吸氧,她的 PaO2 仍然不理想,提示可能存在严重的通气/血流比例失衡。

Etymology / 词源

PaO2 是医学缩写与符号写法:P 表示 partial pressure(分压/压力),a 表示 arterial(动脉),O2 表示 oxygen(氧气)。合起来就是“动脉血中的氧气分压”。这种写法常见于呼吸、生理与重症医学文献中。

Related Words / 相关词

Notable Works / 文献与著作中的常见出处

  • Harrison’s Principles of Internal Medicine
  • Guyton and Hall Textbook of Medical Physiology
  • The ICU Book(Paul L. Marino)
  • Oxford Handbook of Critical Care
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