This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Forensic Medicine
[{'content': 'The heavy metal poisoning from mercury affects which pa of the renal tubule? \nSelect and explain. \nA. PCT, B. DCT, C. CT, D. Loop of Henle', 'role': 'user'}, {'content': "Answer: A \nExplanation: Mercury poisoning leads to membranous nephropathy which primarily causes necrosis of proximal convoluted tubular epithelium. Inorganic mercury affects the proximal tubules and cause vesiculation and exfoliation of brush border membrane , followed by calcium influx and cell death. Ref: The Essentials of Forensic Medicine And Toxicology by Dr. K. S. Narayan Reddy 27th edition; Pages 476 - 478; Heptinstall's Pathology Of The Kidney, Volume 1 By J. Charles Jennette page 1122; Robbins textbook of Basic Pathology 7th edition; pages 476 - 478.", 'role': 'assistant'}]