A low ventilation-perfusion ratio results in:
A) increased dead space.
B) shunting.
C) alveolar collapse.
D) bronchoconstriction.

Question

Quizplus · Accepted Answer

A low ventilation-perfusion ratio means that there is relatively less air getting to a given area of the lung than blood flow, which can lead to shunting. Shunting occurs when blood is able to bypass the capillaries surrounding the alveoli, reducing oxygenation in the lungs.

A Low Ventilation-Perfusion Ratio Results In