<prompt> A 46-year-old female presents to casuality with chest pain. Her BP is 14080mmHg, hea rate 90bpm, and saturations 99 on roomair. What should be yournext step ?AdministeroxygenAdminister analgesiaGive aspirin300mgPerform a 12-leadECG  <response>: An ECG should be performed as soon as possible as prompt diagnosis of ST elevation MI is essential. The majority of patients presenting with chest pain are of non-ischaemic origin and so the other treatments may not be necessary. If ACS is suspected, aspirin should be given first. Oxygen is not recommended in the chest pain management unless saturations are 94 