Immature Granulocytes

Discover Immature Granulocytes count for acute infection and immune response assessment. Monitor white blood cell maturation patterns.

IG · 10³/µL · aka IG, IMMATURE GRANS, IG ABS, IMMATURE GRANULOCYTE COUNT

What are Immature Granulocytes?

Immature granulocytes are young white blood cells that normally reside in bone marrow until they mature. When found in blood, they indicate the bone marrow is rapidly producing and releasing white blood cells, typically in response to infection, inflammation, or stress.

Why is it Tested?

Doctors measure immature granulocytes to assess the severity of bacterial infections, monitor bone marrow response to treatment, evaluate hematologic disorders, and detect early signs of sepsis. Elevated levels often indicate the body is fighting a serious infection.

Normal Ranges

Reference ranges for immature granulocytes:

  • Normal: Typically <0.03 × 10³/µL or <2% of total WBC

Most healthy individuals have very few or no immature granulocytes in their peripheral blood.

Reference ranges vary by authority. Track yours across multiple standards with automatic unit conversions in LabsVault.

What do Abnormal Results Mean?

Abnormal results are not a diagnosis. Always discuss your results with a qualified healthcare provider before making any medical decisions.

Low/Normal Immature Granulocytes

Normal levels suggest:

  • Adequate immune response
  • No significant bacterial infection
  • Normal bone marrow function

High Immature Granulocytes

Elevated levels may indicate:

  • Severe bacterial infection
  • Sepsis or overwhelming infection
  • Bone marrow stress
  • Recovery from chemotherapy
  • Blood disorders (leukemia, lymphoma)
  • Severe tissue necrosis

How to Track Over Time

Immature granulocyte levels help monitor infection severity and treatment response. Rising levels may indicate worsening infection or sepsis, while declining levels suggest successful treatment. Serial monitoring is particularly valuable in hospitalized patients with serious infections.

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