<prompt> A normal-anion-gap metabolic acidosis occurs in patients with :DiarrhoeaDiabetic ketoacidosisMethyl alcohol poisoningAcute renal failure  <response>: Answer is A Diarrhea: The differential diagnosis of normal anion gap acidosis : Hyperalimentation Acetazolamide and other carbonic anhydrase inhibitors Renal tubular acidosis Diarrhea: due to a loss of bicarbonate. Ureteroenteric fistula Pancreaticoduodenal fistula Spironolactone 