system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
A 55-year-old woman comes to the emergency department because of epigastric pain, sweating, and breathlessness for 45 minutes. She has hypertension treated with hydrochlorothiazide. She has smoked 1 pack of cigarettes daily for the past 30 years and drinks 1 glass of wine daily. Her pulse is 105/min and blood pressure is 100/70 mm Hg. Arterial blood gas analysis on room air shows:
pH 7.49
pCO2 32 mm Hg
pO2 57 mm Hg
Which of the following is the most likely cause of hypoxemia in this patient?"
assistant
Increased pulmonary capillary pressure