A 45-year-old man with COPD presents to the emergency department with acute dyspnoea and chest pain. He is hypotensive, with tracheal deviation and absent breath sounds on the right. What is the most appropriate immediate management?AUrgent chest X-ray then intercostal catheterBNeedle decompression of the right chest at the 4th or 5th intercostal space mid-axillary lineCIntravenous frusemide and nitratesDHigh-dose intravenous steroids onlyENon-invasive ventilation as first-lineCheck my answer