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Neutrophil Count (Absolute)

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

This test measures the number of neutrophils, a type of white blood cell that helps fight infections.

Quick summary

["Neutrophils protect your body from bacterial infections."]

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

Key facts at a glance

LOINC
71657-1
Short code
Neuts Band NFr.DF CSF Manual
Synonyms
Neuts Band NFr.DF CSF Manual
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
manual-count
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

Why This Test Is Done

Doctors may order a neutrophil count to check for infections, inflammation, or other health conditions that affect white blood cell production or function. It can also help monitor certain treatments, such as chemotherapy or immune-suppressing medications.

What to Expect Before the Test

No special preparation is usually needed. You may have a small needle inserted into a vein (typically in your arm) to draw a blood sample. This is quick and usually painless.

What the Test Results Mean

Results show the absolute number of neutrophils in your blood. Abnormally high or low counts may signal underlying health issues, such as infections, autoimmune disorders, or blood disorders.

Common Conditions Affecting Neutrophils

High neutrophil counts may indicate acute infections, stress, or certain cancers. Low neutrophil counts (neutropenia) can make you more prone to infections and may be linked to conditions like leukemia, autoimmune diseases, or certain medications.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Neutrophil Blood Count

Frequently asked questions

What causes a neutrophil count to change?
Neutrophil counts can fluctuate due to infections (like bacterial pneumonia or urinary tract infections), chronic illnesses (such as rheumatoid arthritis), or medications that suppress white blood cell production. Stress, physical exertion, or even certain foods can temporarily increase neutrophil levels.
Can diet affect neutrophil counts?
Yes, diet may influence neutrophil levels indirectly. A balanced diet supports overall immune function, but extreme dietary changes or deficiencies (like vitamin B12 or folate) could affect white blood cell counts. Always discuss dietary concerns with your healthcare provider.
How often should I get this test?
Your doctor will determine how often to check your neutrophil count based on your medical history, symptoms, and treatment plan. Regular monitoring may be needed if you have conditions like cancer, autoimmune diseases, or are undergoing treatments that affect your immune system.
  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