Fractional Excretion of Urea (FEUrea) Calculator
Alternative to FENa, more reliable with diuretic use
When to use it
Use instead of FENa when the patient is on diuretics.
Category
Acute Kidney Injury (AKI) Workup
References
- Carvounis CP et al. Significance of the fractional excretion of urea in the differential diagnosis of acute renal failure. Kidney Int. 2002;62:2223-9. PMID: 12427149
- Kamel KS et al. Use of Urine Electrolytes and Urine Osmolality in the Clinical Diagnosis of Fluid, Electrolytes, and Acid-Base Disorders. Kidney Int Rep. 2021;6:1211-1224. PMID: 34013099
About NephroMind
This calculator is part of NephroMind, a free clinical decision-aid platform from the Arab Society of Nephrology and Renal Transplantation (ASNRT) — over 128 bedside nephrology calculators plus a renal drug-dosing database, coded by a practicing transplant nephrologist.