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': 'Sine wave pattern on ECG is done when serum potassium exceeds mEq/dl? \nSelect and explain. \nA. > 6 mEq/dl, B. > 7 mEq/dl, C. > 8 mEq/dl, D. > 10 mEq/dl', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Answer- C. > 8 mEq/dlSine wave pattern- > 8 mEq/dl', 'role': 'assistant'}]