Question

A 58-year-old man with known COPD presents with increasing dyspnoea, purulent sputum and wheeze for 3 days. SpO₂ is 90% on room air. ABG shows type 2 respiratory failure with pH 7.32, PaCO₂ 60 mmHg, PaO₂ 55 mmHg. What is the most appropriate oxygen therapy target?

Accepted Answer

Titrate oxygen to maintain SpO₂ 88-92%

Answer

High-flow oxygen to maintain SpO₂ >98%

Answer

No oxygen therapy to avoid CO₂ retention

Answer

Titrate oxygen to maintain SpO₂ 70-75%

Answer

Hyperbaric oxygen

Practice question

A 58-year-old man with known COPD presents with increasing dyspnoea, purulent sputum and wheeze for 3 days. SpO₂ is 90% on room air. ABG shows type 2 respiratory failure with pH 7.32, PaCO₂ 60 mmHg, PaO₂ 55 mmHg. What is the most appropriate oxygen therapy target?