The count of immature white cells, which can signal infection or marrow stress.
Immature granulocytes are young, not yet fully developed white blood cells of the neutrophil family, such as metamyelocytes, myelocytes and promyelocytes. They normally stay in the bone marrow until they mature, so very few appear in the blood of a healthy person.
Modern haematology analysers count them automatically as part of the complete blood count differential. The absolute count tells you how many of these young cells are circulating per litre of blood.
A small rise in immature granulocytes is one of the earliest signs that the bone marrow is releasing extra white cells, usually in response to infection or inflammation. It can flag a developing problem before other markers move.
Higher counts are seen with bacterial infections, sepsis, tissue injury, and after surgery. Persistently raised values can sometimes point to a bone marrow disorder and are interpreted alongside the rest of the blood count.
Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.
Typical adult guidance, analyser dependent:
| Result | Range |
|---|---|
| Immature granulocytes (absolute) | 0.00 to 0.03 x10⁹/L |
Values near zero are normal. Ranges vary by analyser and laboratory, so always read your result against your lab's reference interval.
Counts can be slightly raised in pregnancy and after surgery without disease. Clotted or old samples and very low numbers of these cells make the automated count less precise. Results should be confirmed on a blood film if persistently high.
Read alongside the total white cell count, neutrophils, and C-reactive protein when looking for infection or inflammation.
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