On the study of the functional characteristics of pulmonary respiration and gas exchange during pregnancy

Abstract

The indicators of the general ventilation-perfusion irregularity of the lungs, gas exchange and pulmonary respiration were studied in 42 women during physiological pregnancy. A decrease in the unevenness of ventilation and blood flow in the lungs with the development of pregnancy was found, which leads to alveolar hyperventilation without significant changes in the dynamic parameters of external respiration, an increase in PO2 of alveolar gas and arterial blood, and hypocapnia.

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