// multi-utility computation suite · offline · instant · precise
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│ computation suite │
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health.fractional-excretion-sodium Calculator
Calculates Fractional Excretion of Sodium (FENa) from urine and plasma sodium and creatinine, and interprets the result to distinguish pre-renal AKI from intrinsic renal AKI. FENa below 1% typically indicates pre-renal azotaemia (kidney hypoperfusion); above 2% suggests ATN.
Inputs
Urine Sodium Meq L
Reference formula or conversion factor shown for context.
Serum Sodium Meq L
Reference formula or conversion factor shown for context.
Urine Creatinine Mg Dl
Reference formula or conversion factor shown for context.
Serum Creatinine Mg Dl
Reference formula or conversion factor shown for context.
Results
FENa (%)
Sample size or count used in the calculation.
interpretation
Qualitative summary of what the computed numbers mean in practical terms.