ER Board Practice Questions - Saudi Board Emergency Medicine Final Written Exam

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A 62-year-old male is in cardiac arrest with refractory ventricular fibrillation. He has received three shocks, CPR, 1 mg of epinephrine, and 300 mg of amiodarone. A fourth shock is delivered, and rhythm check shows persistent ventricular fibrillation. Which of the following is the most appropriate next intervention?

Administer Lidocaine 1.5 mg/kg IV Perform double sequential external defibrillation (DSED) Administer Vasopressin 40 units IV Initiate an Esmolol infusion (500 mcg/kg bolus, then 50 mcg/kg/min)

Correct Answer:

Perform double sequential external defibrillation (DSED)

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