Reticulocyte Count Test
Newly formed red blood cells. Reflects how actively your marrow is producing red cells.
What is Reticulocyte Count?
Newly formed red blood cells. Reflects how actively your marrow is producing red cells.
Reticulocyte Count Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|---|
| age 18+ | 30.0 – 100 10^9/L |
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
What your Reticulocyte Count result may mean
Often reflects recovery from blood loss or anemia, or response to treatment.
Can reflect marrow suppression, iron/B12/folate deficiency, or kidney disease (low erythropoietin).
Educational only — not a diagnosis. Many factors can influence a single result. Discuss anything that concerns you with a healthcare provider.
Sources
Related Blood Health biomarkers
Markers commonly tested alongside Reticulocyte Count.
Frequently asked
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