This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pregnancy induced Hypeension, Subject name: Gynaecology & Obstetrics
[{'content': 'The drug of choice for prevention of seizures in a patient with severe pre-eclampsia is: \nSelect and explain. \nA. Phenytoin, B. Magnesium sulphate, C. Diazepam, D. Nifedipine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: DOC for both prevention and treatment of seizure in a patient with severe pre-eclampsia is MAGNESIUM SULPHATE Signs of IMMINENT ECLAMPSIA are Headache Nausea, vomiting Blurring of vision Increased knee jerks Reduced output Epigastric pain Severe proteinuria Diastolic Blood pressure ? 100mm/hg. DOC for hypeensive emergencies in pregnancy is I.V. LABETALOL.', 'role': 'assistant'}]