Effect of pulmonary artery blood pressure gas exchange in functionally heterogeneous lungs
D'iachenko, A.I.
Biulleten' Eksperimental'noi Biologii i Meditsiny 91(5): 564-566
1981
ISSN/ISBN: 0365-9615 PMID: 6789909 Document Number: 178591
Effect of the gravity-dependent nonuniformity of the ventilation-perfusion ratios on gas exchange in the human lungs has been analyzed. Quantitative relationships have been obtained between alveolar-arterial oxygen tension difference, arterial-alveolar carbon dioxide tension difference and pulmonary arterial pressure, for various compositions of mixed venous blood and various mean ventilation-perfusion ratios. The data obtained may be used for the measurement of pulmonary arterial pressure.