This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Kidney, Subject name: Medicine
[{'content': "Hyperkalemia is observed in which one of the following conditions - \nSelect and explain. \nA. Type 1 renal tubular acidosis, B. Type 2 renal tubular acidosis, C. Type 4 renal tubular acidosis, D. Bater's syndrome", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Type 4: Hyperkalemic A Either low potassium--hypokalemia--or high potassium--hyperkalemia--can be a problem because potassium is impoant in regulating hea rate. Type 4 A occurs when blood levels of the hormone aldosterone are low or when the kidneys do not respond to it. Ref Harrison20th edition pg 289', 'role': 'assistant'}]