All calculations must be re-checked by hand and should not be used alone to guide patient care. See disclaimer for more. Light green = required. Once required data is entered, click anywhere for results.

Equations

Scores

Absolute Reticulocyte Count (Reticulocyte Index)

Percentage or # Retics %
Pt's Hct
Normal Hct (depends on sex and lab norm)
Absolute Reticulocyte Count
Reticulocyte Index

Absolute Reticulocyte Count = # or % retics * (Pt's Hct / Normal Hct)
Reticulocyte Index = Absolute Retic Ct / Maturation Factor

Maturation Factors:

Retic Index > 2% = adequate response; < 2% = hypoproliferation