EasyRespiratoryAcute exacerbation of COPDuk-plab-1
A 72-year-old man with severe COPD presents with increasing breathlessness and productive cough. He is a long-term smoker and uses home nebulisers. On examination he is drowsy with a respiratory rate of 28/min, oxygen saturation 82% on air and widespread wheeze. You decide to start controlled oxygen via a Venturi mask. To what target oxygen saturation range should you titrate oxygen in this patient?