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: Pharmacology
[{'content': 'Renal dose of dopamine is- \nSelect and explain. \nA. 2.5 lig/kg/min, B. 5-10 ug/kg/min, C. 10-20 pg/kg/min, D. 1-2 pg/kg/min', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 1-2 gg/kg/min Dopamine produces dose dependent action: i) At low dose (1-2 ug/kg/min) causes dilation of renal and mesentric vessels often referred as renal dose. ii) At moderately high dose (2-10 ,ug/kg/min) produces a positive ionotropic effect by stimulating [3, receptor on hea cardiac dose. iii) At high doses (> 10 pg/kg/min) produces vasoconstriction by stimulating a, receptors --> vascular dose.", 'role': 'assistant'}]