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肺泡动脉氧分压差 P(A-aDO)指肺泡氧与动脉血氧分压之间的差值。测定 P(A-aDO_2)是了解肺脏摄氧能力和气体交换的主要手段之一。本文为了解慢性支气管炎合并肺气肿(以下简称为慢支)和肺原性心脏病(以下简称为肺心病)急性发作期病人,气体交换情况和探索摄氧能力的客观指标,分别测定正常人、慢支、肺心病急性发作期病人的血液气体共322例次。按公式算出 P(A-aDO_2)三组数值对比
Pulmonary arterial oxygen pressure difference P (A-aDO) refers to the difference between alveolar oxygen and arterial oxygen pressure. Determination of P (A-aDO_2) is one of the main means to understand lung oxygen uptake and gas exchange. In this paper, in order to understand the objective indicators of acute exacerbation of chronic bronchitis with emphysema (hereinafter referred to as chronic bronchitis) and pulmonary heart disease (hereinafter referred to as pulmonary heart disease), gas exchange and explore oxygen uptake capacity were measured normal People, chronic bronchitis, pulmonary heart disease acute exacerbation of patients with a total of 322 cases of blood gas. Calculated by formula P (A-aDO_2) three groups of numerical comparison