Hypothermic submersion cardiac arrest — OSCE

Station brief (8–10 minutes)

An 8-year-old is brought to the emergency department by ambulance after falling through ice into a lake. Submersion was approximately thirty minutes. The child is cold, pale, and pulseless. Cardiopulmonary resuscitation is in progress by paramedics. Intraosseous access is in place. The core temperature reads 25 degrees Celsius, and the monitor shows ventricular fibrillation. You are the registrar leading the resuscitation, with a skilled nurse and a junior doctor present. Apply the hypothermic defibrillation and drug rules, choose the rewarming strategy, and state when resuscitation may be terminated. Name the source for each threshold. ^{[5] [6]}