A 30-year-old woman (weight 70 kg) develops generalised urticaria, wheeze, hypotension and abdominal pain within minutes of a bee sting. She is in the emergency department. What is the most appropriate immediate treatment?AGive 1 mg adrenaline intravenously as a bolusBGive 0.5 mg intramuscular adrenaline (1:1000) into the mid-outer thigh and place her flat with legs elevatedCGive intramuscular hydrocortisone as first-line treatmentDGive nebulised adrenaline onlyEGive slow intravenous chlorphenamine and observeCheck my answer