This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fluid & Electrolyte, 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: Ans. is 'c' i.e.. > 8 mEq/dl Electrocardiographic manifestations in hyperkalemia progress fromTall peaked T waves5.5-6.5 mEq/dlLoss of P waves6.5 - 7.5 mEq/dlWidened q RS complex7-8 mEq/dlSine wave pattern> 8 mEq/dl", 'role': 'assistant'}]