This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Renal Tubular Disease, Subject name: Medicine
[{'content': 'Salt losing nephritis is a feature of: \nSelect and explain. \nA. Interstitial nephritis, B. Polycystic kidney, C. Lupus nephritis, D. Renal amyloidosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' interstitial nephritis One of the important functional consequence of interstitial nephritis is salt wasting.Interstitial nephritis is caused by drugs such as methicillin* or penicillin*It is a type of tubulointerstitial disease in which there is tubular degeneration and necrosis and marked inflammation of interstitium.", 'role': 'assistant'}]