A low ventilation-perfusion ratio of the lung will result in:
a. increased dead space.
b. shunting.
c. alveolar collapse.
d. bronchoconstriction.
ANS: B
Hypoxemia caused by inadequate ventilation of well-perfused areas of the lung is a form of mismatching called shunting, not bronchoconstriction. Inadequate ventilation of well-perfused areas of the lung is not referred to as dead space. Alveolar collapse is called atelectasis.
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