Arab Board EM Final Written Practice Questions - Arab Board Emergency Medicine Final Written Examination Exam

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During resuscitation of a 62-year-old man in out-of-hospital cardiac arrest, ventricular fibrillation persists despite four standard anterolateral defibrillation shocks at maximal energy, 3 mg of epinephrine, and 450 mg of amiodarone. Which strategy has demonstrated increased termination of refractory ventricular fibrillation?

Dual sequential external defibrillation (DSED) or vector change (VC) defibrillation Immediate administration of intravenous calcium chloride and magnesium sulfate Doubling the dose of intravenous epinephrine to 2 mg every 2 minutes Switching from biphasic defibrillation to high-energy monophasic defibrillation

Correct Answer:

Dual sequential external defibrillation (DSED) or vector change (VC) defibrillation

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