us-abfm MCQ (SBA): Long-term Oxygen Therapy

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MediumRespiratory MedicineLong-term Oxygen Therapyus-abfmus-abimus-usmle-step-2

A 68-year-old man with symptomatic severe COPD asks about oxygen therapy. Resting SpO₂ is 86% on room air. What is indicated?

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us-abfm MCQ: Long-term Oxygen Therapy — Answer & Explanation | iatroX