<prompt> Normal anion gap acidosis seen in?Lactic acidosisKeto acidosisMethanol PoisoningHyperchloremic acidosis  <response>: ANSWER: Dl Hyperchloremic acidosisREF: Harrison s Internal Medicine 17th edition chapter 48 Table 48-4, from June 2009, December 2010All evaluations of acid-base disorders should include a simple calculation of the AG; it represents those unmeasured anions in plasma normally 10 to 12 mmolL and is calculated as follows: AG Na - Cl- HCO3-. When acid anions such as acetoacetate and lactate accumulate in extracellular fluid, the AG increases causing a high AG acidosis. An increase in the AG is most often due to an increase in unmeasured anions and less commonly is due to a decrease in unmeasured cations calcium, magnesium, potassium.CAUSES OF HIGH-ANION-GAP METABOLIC ACIDOSIS:Lactic acidosisToxinsKetoacidosisEthylene glycolDiabeticMethanolAlcoholicSalicylatesStarvationPropylene glycol Pyroglutamic acidRenal failure acute and chronic 