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Nephrology · Internal Medicine

Fractional Excretion of Urea (Carvounis) calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Result

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Formula inputs

  • Urine urea (mg/dL)Accepted range: 0 to 10000
  • Plasma urea (mg/dL)Accepted range: 0.1 to 1000
  • Urine creatinine (mg/dL)Accepted range: 0.1 to 1000
  • Plasma creatinine (mg/dL)Accepted range: 0.1 to 30

Primary source

Carvounis CP et al. Significance of the fractional excretion of urea in the differential diagnosis of acute renal failure. Kidney Int (2002)

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