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Pulm Vignettes
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13

June 2025

2024/2025

A+
1. A 68-year-old man with a history of chronic ob- structive pulmonary disease (COPD) presents to the emergency department with increasing shortness of breath, lethargy, and confusion. On examination, he appears drowsy, with labored breathing and use of ac- cessory muscles. His oxygen saturation is 88% on room air, and arterial blood gas (ABG) analysis reveals a pH of 7.28, PaCO2 of 60 mmHg, and HCO3- of 30 mEq/L. What is the likely underlying acid-base disturbance, and what could be the precipi...
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