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
[{'content': 'In cardio pulmonary resuscitation, calcium can be given in all, EXCEPT - \nSelect and explain. \nA. Hypocalcemia, B. Hypokalemia, C. Hyperkalemia, D. Calcium channel blocker', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]