Question

A 60-year-old with COPD exacerbation has increased breathlessness and purulent sputum. SpO₂ 90% on air. Chest auscultation: widespread wheeze. The best initial oxygen strategy is:

Accepted Answer

Targeted oxygen to 88-92% with Venturi mask

Answer

High-flow oxygen to target SpO₂ 100%

Answer

No oxygen due to risk of hypercapnia

Answer

Nasal cannula aiming SpO₂ 95-98%

Answer

Non-rebreathe mask aiming 94-98%

Practice question

A 60-year-old with COPD exacerbation has increased breathlessness and purulent sputum. SpO₂ 90% on air. Chest auscultation: widespread wheeze. The best initial oxygen strategy is: