What increases after an embolus has become trapped in the pulmonary microvasculature?
A)Perfusion
B)Ventilation
C)Dead space
D)Alveolar surfactant

Question

Quizplus · Accepted Answer

A)Dead space, or areas of the lung that are ventilated but not perfused, increases. Both perfusion and ventilation are decreased after a pulmonary embolism. Alveolar surfactant also decreases, increasing the risk for atelectasis (collapsed lung).
B)Dead space, or areas of the lung that are ventilated but not perfused, increases. Both perfusion and ventilation are decreased after a pulmonary embolism. Alveolar surfactant also decreases, increasing the risk for atelectasis (collapsed lung).
C)Dead space, or areas of the lung that are ventilated but not perfused, increases. Both perfusion and ventilation are decreased after a pulmonary embolism. Alveolar surfactant also decreases, increasing the risk for atelectasis (collapsed lung).
D)Dead space, or areas of the lung that are ventilated but not perfused, increases. Both perfusion and ventilation are decreased after a pulmonary embolism. Alveolar surfactant also decreases, increasing the risk for atelectasis (collapsed lung).

What Increases After an Embolus Has Become Trapped in the Pulmonary