A 19-year-year-old man is brought to the emergency department after ingesting an unknown quantity of acetaminophen 3 hours ago in a suicide attempt. He is currently asymptomatic. Which is the most appropriate next step in management?ADischarge home because he is asymptomaticBBegin N-acetylcysteine immediately without any laboratory testsCMeasure serum acetaminophen level at 4 hours post-ingestion and interpret with a nomogramDWait 24 hours then check liver enzymesETreat with activated charcoal onlyCheck my answer