Fig. 2: Flow diagram showing the experimental protocol.
From: Efficacy of laryngeal mask epinephrine in neonatal resuscitation; an ovine study

Near-term lambs were instrumented, asphyxiated to asystole and resuscitated per NRP guidelines. Lambs were randomized to epinephrine via the endotracheal tube or laryngeal mask airway groups. Airway epinephrine was administered 2 minutes after positive pressure ventilation and chest compressions were initiated.