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Granulocyte Count (Absolute)

Published: August 9, 2026Updated: August 16, 2026

This test measures the number of granulocytes (a type of white blood cell) in your blood. Granulocytes help fight infections and inflammation.

Quick summary

["Your doctor may check this test to monitor immune function or diagnose conditions affecting white blood cells."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
14376-8
Short code
Granulocytes NFr Snv Manual
Synonyms
Granulocytes NFr Snv Manual
Category
chemistry
Sample
fluid
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
manual-count
Specimen volume
2-5 mL
Stability
Room temperature: 2h, Refrigerated: 24h
Hemolysis max
300
TAT
4–24 hours
Order
routine

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms like frequent infections, unexplained fevers, or signs of inflammation. It can also be part of routine blood checks or before certain treatments.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm or hand to draw blood. The process usually takes a few minutes.

What the Test Results Mean

Results are reported as the absolute count of granulocytes per microliter (µL) of blood. Low counts may indicate immune deficiencies, while very high counts could signal infections or other conditions.

Common Conditions Affecting Results

Low granulocyte counts might be linked to autoimmune diseases, chemotherapy, or bone marrow disorders. High counts could result from infections, stress, or certain medications.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Granulocyte counts are critical for assessing immune health. Abnormal levels may signal underlying issues requiring further medical evaluation, such as infections, inflammatory diseases, or blood disorders.

Short name

Granulocyte Count

Frequently asked questions

What does an abnormal granulocyte count mean?
An abnormal count could indicate an infection, immune system problem, or other health condition. Your doctor will discuss your results and next steps with you.
How often should I get this test?
Your doctor will determine the frequency based on your symptoms, medical history, and treatment plan. Regular monitoring may be needed if you have chronic conditions.
Is there anything I can do to prepare for this test?
No special preparation is needed, but inform your doctor about any medications or supplements you’re taking, as they may affect results.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.

If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.

Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy