An alert 56-year-old man with a history of COPD presents in…
An alert 56-year-old man with a history of COPD presents in the emergency department complaining of dyspnea, which has worsened over the last few days. A blood gas is drawn on room air: pH 7.26 PaCO2 70 mm Hg PaO2 50 mm Hg HCO3 32 mEq/L Interpret the blood gas.
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