us-abfm MCQ (SBA): Oxygen Saturation Targets in COPD

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EasyRespiratory MedicineOxygen Saturation Targets in COPDus-abfmus-abimus-usmle-step-2

A 70-year-old with severe COPD and chronic hypercapnia uses oxygen at home. Which oxygen saturation target is appropriate to avoid CO₂ retention?

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us-abfm MCQ: Oxygen Saturation Targets in COPD — Answer & Explanation