This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of Thyroid, Subject name: Medicine
[{'content': 'Thyrotoxic periodic paralysis leads to extreme muscle weakness due to? \nSelect and explain. \nA. Hypokalemia, B. Hypocalcemia, C. Hypomagnesemia, D. Hyponatremia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: T3| T4| - Positive Na- K+ ATPase activity in the cells (3 Na outside 2 K+ inside) | K Influx | K| | Thyrotoxic Periodic Paralysis', 'role': 'assistant'}]