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Review Question - QID 219472

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QID 219472 (Type "219472" in App Search)
A 17-year-old male high school football wide receiver is struck directly in the chest by an opposing player's helmet and stumbles to the ground. The training staff attends to him immediately but he is unresponsive on the field. Basic life-saving (BLS) protocols are followed and an AED is applied which detects ventricular fibrillation. Which of the following best describes the pathophysiology of this event?