Reticulocyte Count
General
Synonym/Acronym:
Retic count.
Rationale
To assess reticulocyte count in relation to bone marrow activity toward diagnosing anemias such as pernicious iron deficiency, and hemolytic anemia; to monitor response of therapeutic interventions.
Patient Preparation
There are no food, fluid, activity, or medication restrictions unless by medical direction.
Normal Findings
Method: Automated analyzer, flow cytometry smear.
Age | Reticulocyte Count % |
---|---|
Newborn | 3%–6% |
Infant | 0.4%–2.8% |
Child | 0.8%–2.1% |
Adult–older adult | 0.5%–2.5% |
Reticulocyte Count (Absolute Number) | |
Birth–2 wk | 0.0396–0.1375 (106 cells/microL) or 39.6–137.5 K/microL |
2 wk–older adult | 0.047–0.152 (106 cells/microL) or 47–152 K/microL |
Immature Reticulocyte Fraction % | |
Birth | 2.5%–6.5% |
Newborn–older adult | 2.5%–17% |
Reticulocyte Hemoglobin | |
Birth | 22–32 pg/cell |
Newborn–18 yr | 23–34 pg/cell |
Adult–older adult | 30–35 pg/cell |
Critical Findings and Potential Interventions
N/A
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Citation
Van Leeuwen, Anne M., and Mickey Lynn. Bladh. "Reticulocyte Count." Davis's Lab & Diagnostic Tests, 10th ed., F.A. Davis Company, 2023. Nursing Central, nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425395/all/Reticulocyte_Count.
Van Leeuwen AMA, Bladh MLM. Reticulocyte Count. Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2023. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425395/all/Reticulocyte_Count. Accessed December 9, 2024.
Van Leeuwen, A. M., & Bladh, M. L. (2023). Reticulocyte Count. In Davis's Lab & Diagnostic Tests (10th ed.). F.A. Davis Company. https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425395/all/Reticulocyte_Count
Van Leeuwen AMA, Bladh MLM. Reticulocyte Count [Internet]. In: Davis's Lab & Diagnostic Tests. F.A. Davis Company; 2023. [cited 2024 December 09]. Available from: https://nursing.unboundmedicine.com/nursingcentral/view/Davis-Lab-and-Diagnostic-Tests/425395/all/Reticulocyte_Count.
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