<prompt> Normal anion gap metabolic acidosis is caused by-CholeraStarvationEthlene glycol poisoningLactic acidosis  <response>: Metabolic Acidosis This calculation, normally 10 to 15 mmolL, represents the unmeasured negative ions, predominantly albumin, in blood. Normal anion gap acidosis low serum HCO3 but normal anion gap is caused by excess bicarbonate loss from either the gut diarrhea,cholera or kidney renal tubular acidosis Ref Davidson 23rd edition pg 364 