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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, in your blood. Neutrophils help fight infections by attacking bacteria and other harmful substances.

Quick summary

["Neutrophils protect your body from infections; low or high levels may signal health concerns."]

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

Key facts at a glance

LOINC
68427-4
Short code
Neutrophils # Vitf Manual
Synonyms
Neutrophils # Vitf Manual
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
manual-count
Specimen volume
5 mL
Stability
Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
Hemolysis max
500
Lipemia max
1000
Icterus max
500
TAT
4–24 hours
Order
routine

What Neutrophils Do in Your Body

Neutrophils are a key part of your immune system. They rush to areas where bacteria or other invaders enter your body, where they release chemicals to destroy them. This process helps prevent infections and keeps you healthy. When your body needs extra protection, neutrophil counts may rise to support this response.

When Neutrophil Levels Might Change

Your neutrophil count can increase during infections, stress, or inflammation, or it may drop due to certain medications, medical conditions, or immune system disorders. Doctors may check neutrophil levels to diagnose or monitor conditions like infections, autoimmune diseases, or blood disorders.

How the Test Works

A small sample of your blood is taken and analyzed to count the number of neutrophils. This is typically done using an automated blood cell counter, which separates and measures different types of white blood cells.

Preparation for the Test

No special preparation is needed for this test. You can eat, drink, and go about your normal activities as usual. If you are on certain medications, let your healthcare provider know before the test.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Absolute Neutrophil Count (ANC)

Frequently asked questions

Why might my neutrophil count be checked?
Your doctor may order this test to evaluate symptoms like frequent infections, unexplained fevers, or signs of inflammation. It can also help diagnose conditions such as infections, leukemia, or other blood disorders. High neutrophil counts might indicate stress, infections, or certain cancers, while low counts could signal immune deficiencies or other health issues.
What do abnormal neutrophil levels mean?
High neutrophil counts may suggest an active infection, inflammation, or stress response. Low neutrophil counts can make you more susceptible to infections and may require further medical evaluation to determine the underlying cause.
Can I get my neutrophil count at home?
No, neutrophil counts are typically measured in a clinical lab using a blood sample. While some at-home blood tests can provide rough estimates of white blood cell counts, they are not as accurate as lab tests for detailed analysis.
  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