<prompt> Normal anion gap metabolic is caused by :CholeraStarvationEthylene glycol poisoningLactic acidosis  <response>: Answer is A Cholera Cholera is a cause of normal anion gap metabolic acidosis produced as a result of loss of bicarbonate in the faeces. Metabolic acidosis with normal anion gap : Normal anion gap in the presence of acidosis suggests that either, WC; is retained or that Na HCO3- is being lost. Increased Gastrointestinal bicarbonate loss Decreased renal hydrogen ion excretion Diarrhoea Distal type 1 renal tubular acidosis Ileostomy Type 4 renal tubular acidosis aldosterone deficiency Ureterosigmoidostomy Increased renal bicarbonate loss Increased 1-1C1 production Acetazolamide Ammonium chloride ingestion Proximal type 2 renal tubular acidosis Increased catabolism of lysine, arginine Hyperparathyroidism Tubular damage, e.g. drugs, heavy metals, paraproteins Causes of normal anion gap metabolic acidosis : Diarrhea Cholera, Fistula, Ureterosigmoidostomy Renal Tubular Acidosis Ingestion of Ammonium Chloride Mineralocoicoid deficiency 