This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pharmacology, Subject name: Pharmacology
[{'content': 'Which of the following drug is used for hyperkalemia? \nSelect and explain. \nA. Calcium gluconate, B. Glucagon, C. Sodium phosphate, D. Chloride salts', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Calcium gluconate is used to decrease potassium toxicity along with insulin. Calcium chloride is 2nd choiceRef:', 'role': 'assistant'}]