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: Medicine
All of the following cause high anion gap metabolic acidosis EXCEPT: March 2013 (d, f) 
Select and explain. 
A. Lactic acidosis, B. Salicylates poisoning, C. Ethylene glycol poisoning, D. Ureterosigmoidostomy
D: Ureterosigmoidostomy
Answer: D: Ureterosigmoidostomy 
Explanation: Ans. D i.e. Ureterosigmoidostomy Anion gap Increased anion gap is seen in: - Starvation, - Salicylate poisoning, - Renal failure etc.