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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. Neutrophils are key defenders against bacteria and some viruses.

Quick summary

["Neutrophils help 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
71671-2
Short code
Neutrophils NFr.DF Bld Manual
Synonyms
Neutrophils NFr.DF Bld Manual
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
manual-count
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why Is This Test Done?

Your doctor may order this test to check for infections, blood disorders, or immune system issues. It’s often used alongside other blood tests to monitor conditions like leukemia, autoimmune diseases, or chronic infections.

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, and you may feel a slight pinch.

What the Results Mean

Results are reported as the number of neutrophils per microliter (µL) of blood. While reference ranges vary by lab, very low counts (below normal) may indicate infections, bone marrow disorders, or immune suppression, while very high counts may signal inflammation or other conditions.

Common Conditions Monitored

This test helps diagnose or manage conditions like severe infections, certain cancers (e.g., leukemia), or autoimmune diseases where the immune system overreacts.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Neutrophils play a critical role in fighting bacterial infections. Low neutrophil counts (neutropenia) can increase infection risk, while elevated counts may signal chronic inflammation or other systemic issues. Your doctor will interpret results in the context of your overall health and symptoms.

Short name

Absolute Neutrophil Count (ANC)

Frequently asked questions

What causes low neutrophil counts?
Low neutrophil counts can result from infections, certain medications, autoimmune diseases, or conditions affecting bone marrow (e.g., chemotherapy, anemia). If you’ve been taking medications or have symptoms like frequent infections, mention this to your doctor.
What should I do if my neutrophil count is abnormal?
If your results are outside the normal range, your doctor will discuss them with you. They may recommend further tests, adjustments to medications, or treatments to address the underlying cause. Follow their guidance closely.
Can diet or lifestyle affect neutrophil counts?
While diet and lifestyle can influence overall immune health, they don’t directly affect neutrophil counts. Focus on a balanced diet, hydration, and avoiding smoking to support your immune system, but avoid making assumptions based on test results alone.
  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