<prompt> A 2 year old child is being evaluated for persistent metabolic acidosis. Blood tests show Na 140mEql. K 3mEql, Ca2 8mgl, Mg2 mEql. phosphate 3 mEql, pH 7.22, bicarbonate 16mEql and chloride 112mEql. The plasma anion gap is:9152225  <response>: Anion gap is the unmeasured anions in plasmaAnion gap NaK - Cl-HCO3- 1403 - 16112 15Normal is 10-12 mmolLRef: Harrisons 18e p365, 17e p289,290 