Renal Kidney Failure Index Calculator

Urine Sodium:  
Serum Creatinine:  
Urine Creatinine:  
Renal Failure Index:    
     

Kidney failure also called Renal failure is kidneys fail to adequately filter waste products from the blood.

Renal Kidney Failure Index Formula:

RFI = UNa x SCr/UCr

Where UCr is Urine Creatinine in mg/dL, SCr is Serum Creatinine in mg/dL, UNa is Urine Sodium in mEq/L, RFI is Renal Failure Index.

Diagram showing the basic physiologic mechanisms of the kidney