Oxygen Use in COPD: When You Need It, How to Stay Safe
💡TL;DR: Long-term oxygen therapy is prescribed when resting oxygen is low (SpO₂ ≤ 88% or PaO₂ ≤ 55 mmHg). Using oxygen for 15+ hours/day improves survival and stamina in people with proven hypoxemia. Clinicians usually aim for 88–92% SpO₂ to balance oxygen needs and CO₂ risk. Most people qualify