Blockage of the pulmonary arterial circulation to a portion of the lung would cause which of the following?
a. Decrease in anatomical dead space
b. Decrease in physiologic dead space
c. Increase in alveolar dead space
d. Increase in anatomical dead space
ANS: C
A pulmonary embolus blocks a portion of the pulmonary circulation. This obstructs perfusion to ventilated alveoli, creating alveolar dead space.
Health Professions
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