[Non-uniformity of the ventilation-perfusion ratio in the lungs, and arterial hypoxemia]

The general analysis of the relationships between the extent of nonuniformity of ventilation-perfusion ratios and blood flow through poorly ventilated protions of the lungs on the one hand and arterial hypoxemia on the other one has been performed. Quantitative evidence on the onset of arterial hypoxemia in disturbances of ventilation-perfusion ratios are obtained.