Comparison of the apex of the lung, the base of the lung has

Overall, perfusion increases more than ventilation at the base of the lung, resulting in lower V/Q ratios in the base of the lung compared to the apex. In a healthy individual, the V/Q ratio is 1 at the middle of the lung, with a minimal spread of V/Q ratios from 0.3 to 2.1 from base to apex Ref: guyton and hall textbook of medical physiology 12 edition page number:332,333,334