This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': 'A young girl on antidepressant therapy presented to emergency with palpitations, altered sensorium and hypotension. There is wide QRS interval and right axis detion in ECG. Next best step in the management of this patient is: \nSelect and explain. \nA. Physostigmine, B. NaHCO3, C. Dialysis, D. Flumazenil', 'role': 'user'}, {'content': 'Answer: B \nExplanation: *The clinical features and ECG findings typically suggest a diagnosis of tricyclic antidepressant (TVA) poisoning. *Antidote for TCA poisoning is sodium bicarbonate *Hemodialysis is not effective is TCA poisoning REF: HARRISONS 20TH ED.', 'role': 'assistant'}]