Arab Board Emergency Medicine Clinical Exam Practice Questions - Arab Board Emergency Medicine Final Clinical And Oral Examination (ABHS) Exam

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A 58-year-old male is in cardiac arrest from refractory ventricular fibrillation (VF). He has received three standard 200 J biphasic shocks, CPR, 1 mg IV epinephrine, and 300 mg IV amiodarone, but VF persists on the monitor. Which intervention has the strongest clinical evidence for terminating refractory ventricular fibrillation in this scenario?

Double sequential external defibrillation (DSED) with a second defibrillator Immediate administration of high-dose intravenous epinephrine (5 mg bolus) Intravenous calcium chloride 1 g bolus followed by sodium bicarbonate Immediate administration of intravenous bretylium tosylate

Correct Answer:

Double sequential external defibrillation (DSED) with a second defibrillator

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