A 65-year-old patient with a background of COPD and a history of heavy smoking presents with breathlessness and saturations of 90% on nasal 2 litres oxygen, RR 24. His other observations are stable. He has reduced air entry on his left chest. There is no history of injury. CXR shows a large pneumothorax on the left side. What is the next best course of action?
By Karthik Easvur - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=67105174
