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: Medicine
The treatment of choice in acute hyperkalemia of life threatening to cardiac myocytes is 
Select and explain. 
A. Infusion of calcium gluconate, B. Oral resins, C. Intravenous infusion of insulin, D. b blocker
A: Infusion of calcium gluconate
Answer: A: Infusion of calcium gluconate 
Explanation: Ans. is `a' i.e. Infusion of calcium gluconate