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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 are key defenders against bacterial infections."]

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

Key facts at a glance

LOINC
14848-6
Short code
Neutrophils NFr Plr Manual
Synonyms
Neutrophils NFr Plr 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 is this test done?

Your healthcare provider may order this test to check for infections, inflammation, or other conditions affecting your immune system. It can also help monitor certain treatments or diseases, such as leukemia or autoimmune disorders.

What does a result mean?

Results are typically reported as the absolute count of neutrophils per microliter (µL) of blood. Higher than expected counts may indicate infection, inflammation, or other conditions. Lower counts might suggest immune suppression, certain cancers, or other health issues.

How is this test performed?

A small blood sample is drawn from a vein, usually in your arm. The sample is then analyzed in a lab to count the neutrophils.

What preparation is needed?

No special preparation is usually required, but avoid heavy exercise or stress before the test if instructed by your provider.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Neutrophils play a critical role in fighting bacterial infections. Elevated neutrophil counts can signal acute infections, inflammatory processes, or conditions like acute myeloid leukemia. Low neutrophil counts may indicate immune deficiencies, chemotherapy side effects, or other systemic illnesses.

Short name

Neutrophil count

Frequently asked questions

What are common reasons for this test?
Common reasons include suspected infections (like pneumonia or urinary tract infections), monitoring chronic diseases (like rheumatoid arthritis), or evaluating blood disorders.
Can diet or medications affect neutrophil counts?
Yes, certain medications (e.g., steroids, chemotherapy drugs) or dietary factors (like severe malnutrition) can influence neutrophil levels.
How long does it take to get results?
Results are usually available within 1–2 business days, depending on lab processing times.
  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