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诊断呼吸衰竭的主要指标之一是动脉血氧分压(PaO_2)的下降.但动脉血氧与吸入气氧分压的高低直接相关,这一点可由肺泡气方程说明.
Diagnosis of respiratory failure is one of the main indicators of arterial partial pressure of oxygen (PaO_2) decline.But arterial oxygen and inspiratory gas oxygen partial pressure is directly related to the level, which can be described by the alveolar gas equation.