High Anion Gap Acidosis is seen in all of the following conditions, EXCEPT:
Diabetic Ketoacidosis
Lactic Acidosis
Renal Tubular Acidosis
Methanol Poisoning
Proximal and distal renal tubular acidosis is associated with non anion gap metabolic acidosis. In this, the reciprocal changes in chloride and bicarbonate result in a normal anion gap. Must know: Causes of high anion gap acidosis are: Lactic acidosis Ketoacidosis: Diabetic, alcoholic, starvation Toxins: Ethylene glycol, methanol, salicylates, propylene glycol and pyroglutamic acid Acute and chronic renal failure Ref: Harrison's Principles of Internal Medicine, 18th edn, chapter 47