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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.

Quick summary

["Neutrophils protect your body from bacterial 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
30455-0
Short code
Neutrophils NFr Plr
Synonyms
Neutrophils NFr Plr
Category
chemistry
Sample
fluid
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 doctor may order this test if you have symptoms like frequent or severe infections, fatigue, fever, or swelling. It can also help diagnose conditions like leukemia, autoimmune diseases, or infections.

What to Expect Before the Test

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

What the Results Mean

Results are reported as the number of neutrophils per microliter (cells/µL) of blood. While reference ranges vary by lab, very low counts (below normal) may indicate immune suppression, while very high counts may suggest inflammation or infection.

Common Conditions Affecting Neutrophils

Low neutrophil counts can occur with certain medications, autoimmune diseases (e.g., lupus), or bone marrow disorders. High counts may signal infections, stress, or inflammatory conditions like rheumatoid arthritis.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Neutrophils are critical for fighting bacterial infections. Abnormal counts can indicate underlying health issues that need further evaluation, such as infections, immune disorders, or blood cancers.

Short name

Absolute Neutrophil Count (ANC)

Frequently asked questions

What causes my neutrophil count to be low?
Low neutrophil counts can result from infections, certain medications, autoimmune diseases, or conditions affecting bone marrow production. If you notice frequent infections or fatigue, discuss symptoms with your doctor.
How long does it take to get my neutrophil test results?
Results are typically available within 1–3 business days, depending on your lab. Follow-up with your healthcare provider to discuss findings and next steps.
Can diet or lifestyle affect neutrophil counts?
Dietary changes alone won’t alter neutrophil counts, but maintaining a balanced diet and managing chronic conditions (like diabetes) can support overall immune health. Avoid smoking and excessive alcohol to reduce stress on 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