AM VaultPractice questions › Adult health: medicine › Chest pain triage
Chest pain triage
A practice question in the style of the AMC Part 1 MCQ exam. Choose your answer to see the explanation.
A 39-year-old woman has breathlessness and pleuritic pain. She is hypoxic, but the chest x-ray is clear. Which mechanism best explains hypoxia in pulmonary embolism?
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The answer is E: Ventilated lung that is no longer perfused.
In PE, ventilated lung is no longer perfused, so blood bypasses gas exchange.
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