A 30-year-old man is brought to the ED after ingesting an unknown quantity of acetaminophen 3 hours ago in a suicide attempt. He is asymptomatic. According to toxicology guidance, what is the most appropriate next step?ANo treatment as he is asymptomaticBDraw serum acetaminophen level at 4 hours post-ingestion and initiate N-acetylcysteine if above treatment lineCStart hemodialysis immediatelyDAdminister activated charcoal only, no further actionEWait 24 hours and then draw acetaminophen levelCheck my answer