This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S, Subject name: Pharmacology
[{'content': 'Systemic vascular resistance is twice that of normal, treatment should be: \nSelect and explain. \nA. Adrenaline, B. Nor-adrenaline, C. Sodium nitroprusside, D. Isoprenaline', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (C) Sodium nitroprusside(Ref: KDT 8th/e p613)Increase in systemic vascular resistance means vasoconstriction, thus a vasodilator drug like nitroprusside should be used. Adrenaline and nor-adrenaline act as vasopressors whereas isoprenaline increases systolic blood pressure by acting on heart.', 'role': 'assistant'}]