Practice question

Answer the question and get instant feedback.

ModerateRespiratoryAcute exacerbation of COPDuk-plab-1

A 70-year-old man with known COPD (FEV1 40% predicted) presents with increased breathlessness and productive cough. His oxygen saturations are 86% on air, respiratory rate 28/min and he is using accessory muscles. Arterial blood gas on air shows PaO2 6.8 kPa, PaCO2 7.2 kPa and pH 7.34. What is the most appropriate oxygen saturation target when commencing controlled oxygen therapy?

Practice more on iatroX

Educational content. Not a substitute for clinical judgement or local policy.