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': 'Drug of choice for cardiogenic shock - \nSelect and explain. \nA. Dopamine, B. Propranolol, C. Digitalis, D. Milrinone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. is \'a\' i.e., Dopamine o Drugs used in cardiogenic shock are ---> Dobutamine, Dopexamine or dopamine. "Dobutamine is preferred as it tends to vasodilate" - Dobutamine is not given in options, so best answer is dopamine.', 'role': 'assistant'}]