This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General physiology, Subject name: Physiology
[{'content': "NERST's potential of Na+ is \nSelect and explain. \nA. 60, B. -60, C. 90, D. -80", 'role': 'user'}, {'content': "Answer: A \nExplanation: NERNST potential of an ion is the potential at which there is net flow of the ion across the cell membrane..........and for sodum it's about +55mv to +60mv REF: GANONG'S REVIEW OF MEDICAL PHYSIOLOGY -23rd EDITION. Page No-7)", 'role': 'assistant'}]