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': 'HIV treatment in pregnancy \nSelect and explain. \nA. After diagnosis till lifelong, B. After 1st trimester till lifelong, C. After diagnosis till puerperium, D. After pregnancy till lifelong', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ref. DC Dutta's Textbook of Obstetrics. Pg 352\n\xa0\nRegardless of HIV viral load and CD4 count, all HIV infected pregnant women should be offered antiretroviral therapy (ART) after diagnosis till lifelong to reduce perinatal transmission\n\nART should focus on reduction of perinatal transmission and treatment of maternal HIV disease.\nIt reduces perinatal transmission by several mechanisms , including lowering maternal antepartum viral load and pre exposure and post exposure prophylaxis of the infant.\nTherefore, for prevention of perinatal transmission of HIV ,combined antepartum, intrapartum, and infant antiretroviral prophylaxis is recommended .", 'role': 'assistant'}]