Hypoalbuminemia and hypophosphatemia can mask an anion gap (particularly, low albumin states usually underestimate the anion gap). To estimate the normal anion gap for that patient, either: 1. Multiply the albumin by 2.5 and add half the phosphorous OR 2. For every g/dL the albumin is below 4, add 2.5 to the calculated anion gap #Diagnosis #Nephro #LowAnionGap #Differential #Curbsiders #Causes
