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: Unknown
[{'content': 'Maintenance dose of digoxin : \nSelect and explain. \nA. 0.25 mg/day, B. 2.5 micro gram/day, C. 25 mg/day, D. 250 mg/day', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Slow digitalization : Here maintenance dose of Digoxin (average 0.25 mg/day) is given from the beginning. Full response takes 5-7 days to develop, but the procedure is much safer. In case adequate response is not seen after I week, increase the dose to 0.375 and then to 0.5 mg after another week.\nRapid oral digitalization : Here Digoxin 0.5 – 1.0 mg stat dose given followed by 0.25 mg every 6 hours with careful monitoring and watch for toxicity till response occurs – generally takes 6-24 hours (total dose 0.75 – 1.5 mg). This is seldom practiced now.\nEmergency digitalization : It is practiced rarely now, only as a desperate measure in CHF or in atrial fibrillation. Digoxin 0.25 mg followed 0.1 mg hourly is given by slow IV. Injection with close ECG, BP and CVP monitoring till response occurs (2-6 hours, total dose 0.5 – 1.0 mg)', 'role': 'assistant'}]