In the AEIOU dialysis indications mnemonic, what does the E stand for?

• A. Acidosis
• B. Electrolyte
• C. Ingestion/Intoxicants
• D. Overload

Answer: (B)

Dialysis indications are recalled with the AEIOU framework to cover five emergency scenarios: Acidosis, Electrolyte disturbances, Ingestions/Intoxications, Overload, and Uremia. The E stands for electrolyte disturbances, meaning dangerous shifts in electrolytes that are severe or not responsive to initial medical therapy—most classically hyperkalemia that can precipitate life-threatening arrhythmias. This category captures situations where removing toxins via dialysis is needed to directly correct the abnormal electrolyte balance. The other letters map to the remaining categories: acidosis for severe metabolic acidosis, ingestations/intoxications for toxic ingestions, overload for fluid excess, and uremia for symptomatic kidney failure. In short, the E identifies the critical electrolyte derangements that require dialysis when they threaten stability or fail to respond to medical management.