You are an FY2 doctor working in a psychiatry hospital and are due to present your audit at the local paediatrics department which is 20 minutes away. You have gained permission to leave early so you can arrive on time. You are walking through the car park when you come across a child who appears to have shortness of breath and lip swelling. His distressed mother tells you that he has a nut allergy and she is worried that the chocolate bar he has been eating contains nuts.