A 28-year-old man with a known peanut allergy accidentally ingests peanuts and develops generalised urticaria, throat tightness, wheeze and hypotension. In the emergency department, what is the first-line treatment?AIntravenous hydrocortisoneBIntramuscular adrenaline 0.5 mg of 1:1000 into the anterolateral thighCOral antihistaminesDHigh-flow oxygen onlyENebulised salbutamol onlyCheck my answer