us-abem MCQ (SBA): COPD Exacerbation with Hypercapnia

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ModerateRespiratory MedicineCOPD Exacerbation with Hypercapniaus-abemus-abimus-usmle-step-2

A 70-year-old with severe COPD presents with acute dyspnea. ABG: pH 7.28, PaCO₂ 68 mm Hg, PaO₂ 58 mm Hg on 2 L O₂. He is alert. Best initial ventilatory support?

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us-abem MCQ: COPD Exacerbation with Hypercapnia — Answer & Explanation