FENa Calculator
Fractional Excretion of Sodium for AKI evaluation.
Serum Values
mEq/L
mg/dL
Urine Values
mEq/L
mg/dL
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FENa
0.00 %
Prerenal AKI
Prerenal AKI
Fluid responsive. Consider volume resuscitation.
Formula
FENa = (UNa × SCr) / (SNa × UCr) × 100
= (15 × 2) / (140 × 80) × 100 = 0.00%
Reference
<1%: Prerenal
1-2%: Indeterminate
>2%: Intrinsic
Frequently Asked Questions
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