A 32-year-old man is brought to the emergency department after being found unresponsive with pinpoint pupils and shallow respirations. There is drug paraphernalia nearby. What is the most appropriate immediate intervention?AAdminister intravenous naloxone and support airway and ventilationBGive flumazenil intravenouslyCAdminister N-acetylcysteine intravenouslyDStart high-dose intravenous steroidsEPlace him in the recovery position and observe without treatmentCheck my answer