A 22-year-old man presents to ED after taking an unknown quantity of paracetamol tablets 6 hours ago in an impulsive overdose. He is currently asymptomatic. What is the most appropriate next step?AReassure and discharge because he is asymptomaticBMeasure serum paracetamol concentration and plot on the nomogram to determine need for N-acetylcysteineCGive activated charcoal only and send homeDStart haemodialysis immediatelyEObserve without blood tests for 24 hoursCheck my answer