Renal Failure Index

 
RFI = UrineNa * SerumCreat / UrineCreat

 
Input:
 
Urine Na  
Urine Creat  
Serum Creat  

 
Result:
 
RFI  
 
Decimal Precision  
 
Notes
  • In this calculator, mcg is the abbreviation for micrograms.
  • An RFI <1 is consistant with prerenal failure while an RFI >1 goes with ATN.

 

 
 
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