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': 'Common feature of Gitelman syndrome is : \nSelect and explain. \nA. Hyperkalemia, B. Metabolic alkalosis, C. Hypermagnesemia, D. High calcium excretion', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Gitelman syndrome- Caused by loss of function mutations in the thiazide sensitive Na cl co transpoer of the DCT. salt wasting disorder associated with hypokalemic alkalosis and hypocalciuria Hypomagnesemia,chondrocalcinosis(abnormal deposition of calcium pyrophosphate dihydrate in joint cailage). Ref:Harrison 20 th edition pg no 306,2096', 'role': 'assistant'}]