Which cause of hypoxemia is the result of blood passing through unventilated portions of the lungs?
A) Alveolar hypoventilation
B) Dead space ventilation
C) Intrapulmonary shunting
D) Physiologic shunting

Question

Quizplus · Accepted Answer

Hypoxemia is the result of impaired gas exchange and is the hallmark of acute respiratory failure.Hypercapnia may be present,depending on the underlying cause of the problem.The main causes of hypoxemia are alveolar hypoventilation,ventilation-perfusion (V/Q)mismatching,and intrapulmonary shunting.Intrapulmonary shunting occurs when blood passes through a portion of a lung that is not ventilated.Physiologic shunting is normal and not a cause of hypoxemia.

Which Cause of Hypoxemia Is the Result of Blood Passing