Corrected Reticulocyte Count

Name: Corrected Reticulocyte Count
Creator: Daniel Diaz-Gil, MD
Keywords: reticulocyte, corrected reticulocyte count, RPI, reticulocyte production index, anemia, hematology, pediatric

Calculates corrected reticulocyte count and reticulocyte production index (RPI) with maturation correction

Clinically Verified· 7 tests

For educational and informational purposes only. Verify all results before clinical application.

Reticulocyte % *

Hematocrit *

Age

years

Age-specific normal hematocrit is used to calculate the corrected reticulocyte count (reticulocyte index). Normal Hct varies significantly by age in pediatrics.

References

Piva E, Brugnara C, Chiandetti L, Plebani M. Automated reticulocyte counting: state of the art and clinical applications in the evaluation of erythropoiesis. Clin Chem Lab Med. 2010;48(10):1369-1380.[DOI]

Reviewed by Daniel Diaz-Gil, MD · Last updated March 2026

Medical disclaimer

This tool is for educational and informational purposes only. It is not a substitute for professional clinical judgment. Always independently verify results before making clinical decisions.

Professional Resources — Tools used by pediatricians for hematology-oncology assessment

Nathan and Oski's Hematology and Oncology of Infancy and ChildhoodDefinitive pediatric hematology-oncology reference~$250via Amazon Oncology Quick ReferenceQuick-reference for pediatric oncology protocols and supportive care~$20via Amazon