Metabolic acidosis, normal anion gap

Definition

Gap 6-12 meq

Etiology

Gastrointestinal loss of HCO₃^-, e.g., diarrhea, pancreatic ileostomy or ileal loop bladder
Renal tubular acidosis
Recovery from diabetic ketoacidosis
Dilutional acidosis from rapid administration of 0.9% NaCl
Carbonic anhydrase inhibitors
Chloride retention or administration of HCl equivalent or NH₄Cl

See related DDx

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