This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous (Kidney), Subject name: Pathology
Mercury affects which part of the kidney 
Select and explain. 
A. PCT, B. DCT, C. Collecting duct, D. Loop of Henle
A: PCT
Answer: A: PCT 
Explanation: Ans. is 'a' i.e. PCT Pattern in Acute tubular necrosisIschemic typeTubular necrosis is patchy, relatively short lengths of tubules are affected Straight seg. of proximal tubules and ascending limb of Henle's loop are most vulnerableToxic necrosis MercuryPCT is mainly involvedLeadEntire tubule is damaged