RPI (Reticulocyte Production Index)
(Last Updated - 7/20/2007)

-the form below uses the equation:

RPI = [Retics (%) * Hct (%)] / [45 (%) * RMT]

     Where RMT = Reticulocyte Maturation Time
          RMT = [(-0.05) × Patient's HCT (%)] + 3.25


Reticulocyte Count (%):    
Hematocrit (%):               

RPI:



RPI Ranges:
     > 2 --> Suggests an effective erythropoiesis response
     < 2 --> Suggests an ineffective response


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References: