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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

Complete all required inputs to calculate the score.

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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