Definition Non-Anion Gap Metabolic Acidosis – USED CRAP Ureteroenterostomy/Ureterosigmoid connection- either because of surgical ureteral sigmoidostomy or a ureterosigmoid fistula as may occur in Crohn’s disease Small bowel fistula, steroid excess (Addison’s disease, iatrongenic) Extra chloride (NH4Cl or amino acid chlorides 2° to TPN) Diarrhea Carbonic Anhydrase inhibitors, CaCl ingestion, cholestyramine ingestion RTA types I […]