This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
[{'content': 'The best chances of recovery after successful cardiopulmonary resuscitation are seen in: \nSelect and explain. \nA. Ventricular Tachycardia, B. Ventricular Fibrillation, C. Asystole, D. Electromechanical dissociation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Ventricular Tachycardia) The outcome after cardiac arrest is hest if the mechanism k ventricular tachycardia- Outcome after cardiac arrest in decreasing order of success Ventricular tachycardia (Best) Ventricular fibrillation (Second Best) Asystole Pulseless Electrical activity (Electromechanical dissociation)', 'role': 'assistant'}]