This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
[{'content': 'A 60 year old hypeensive patient is on angiotensin II receptor antagonists (losaan) is post for hernia repair surgery. The hypeensive drug should be \nSelect and explain. \nA. Continue till the day of operation, B. Discontinued 24 hours preoperatively, C. Discontinued one week preoperatively, D. Administered in increased dosage on the day of operation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Before surgery antihypeensive drug should be used till the day of surgery Refer CMDT 2014_47', 'role': 'assistant'}]