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FENa and FEUrea Calculator
Serum Creatinine is required
Urine Creatinine is required
Information/Conversions
To Calculate FENa - Enter values for Urine Sodium and Serum Sodium
To Calculate FEUrea - Enter values for Urine Urea and BUN or Serum Urea
To Calculate Both - Enter values for all fields
Fractional Excretion of Sodium (FENa) = [(Urine Sodium * Serum Creatinine) / (Serum Sodium * Urine Creatinine)]
Fractional Excretion of Urea (FEUrea) = [(Urine Urea * Serum Creatinine) / (Serum Urea * Urine Creatinine)]