This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
[{'content': 'In a status epilepticus patient, first line of drugs is \nSelect and explain. \nA. Benzodiazepine, B. Phenytoin, C. Barbiturates, D. Magnesium', 'role': 'user'}, {'content': 'Answer: A \nExplanation: IV benzodiazepines are initiated first in a status epilepticus patient, followed by IV antiepileptics.If refractory seizures, phenobarbital may be given.Ref: Harrison 19e 2558', 'role': 'assistant'}]