Final answer:
Ventricular fibrillation (VF) is a life-threatening cardiac arrhythmia that requires prompt defibrillation to restore normal heart rhythm. If VF persists despite initial treatment, additional interventions may be necessary to achieve a return of spontaneous circulation.
Step-by-step explanation:
Ventricular fibrillation (VF) is a life-threatening cardiac arrhythmia where the ventricles of the heart quiver instead of pumping blood effectively. When VF occurs, it is crucial to deliver prompt defibrillation to reset the heart's rhythm and restore normal function.
CPR may also be performed to maintain blood circulation until a defibrillator is available. In the scenario described, if the patient remains in ventricular fibrillation despite 1 shock and 2 minutes of continuous CPR, additional defibrillation attempts or advanced life support measures may be necessary to achieve a return of spontaneous circulation.