A 19-year-old man is brought to the emergency department after being found unresponsive with pinpoint pupils and shallow respirations. There are multiple opioid tablets nearby. What is the most appropriate immediate management?AAdminister intravenous naloxone and provide ventilatory support as neededBGive flumazenil to reverse sedationCInduce vomiting with ipecacDObserve without intervention because he will likely wake upEStart long-acting opioid therapy to prevent withdrawalCheck my answer