25 year old male patient presents with ingestion of antifreeze solution.His arterial blood has analysis report is as follows : PH = 7.20 Anion gap = 15 PCO2 = 25 HCO3 = 10 most likely diagnosis is

anion gap =15 (high) Difference in anion gap : 15-10= 5 Difference in HCO3 levels : 25-10=15 As difference in HCO3 levels is more than that of anion gap , this is a case of High anion gap metabolic acidosis + compensatory respiratory alkalosis + normal anion gap metabolic alkalosis.