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Neutrophil Absolute Count (Blood)

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 and inflammation."]

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

Key facts at a glance

LOINC
59025-7
Short code
Neutrophil Ab Ser FC-aCnc
Synonyms
Neutrophil Ab Ser FC-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
flow-cytometry
CPT
86430
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

Why This Test Might Be Ordered

Your doctor may order this test to check for infections, inflammation, or conditions like leukemia, where the number of neutrophils can be unusually high or low. It can also help monitor treatments for blood disorders or immune-related conditions.

What to Expect Before the Test

No special preparation is needed. You may have a small needle inserted into your arm or hand to draw a blood sample. The process usually takes a few minutes.

What the Results Mean

Results are typically reported as the absolute count of neutrophils per microliter (µL) of blood. High counts may indicate infection, stress, or certain diseases, while low counts can signal immune deficiencies or other health issues.

Common Conditions Affecting Neutrophil Levels

Elevated neutrophil counts can be due to infections (such as bacterial), chronic illnesses, or stress. Low neutrophil counts may be linked to autoimmune diseases, chemotherapy, or certain genetic disorders.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance: Neutrophils are the most abundant white blood cells and play a critical role in the body’s immune response to bacterial infections. Abnormal counts can signal underlying health issues requiring further evaluation.

Short name

Neutrophil Count

Frequently asked questions

What causes a high neutrophil count?
High neutrophil counts can result from infections (like pneumonia or urinary tract infections), chronic diseases (such as rheumatoid arthritis), stress, or certain medications.
What causes a low neutrophil count?
Low neutrophil counts (neutropenia) may occur due to chemotherapy, autoimmune diseases, vitamin deficiencies, or genetic disorders. Severe cases can increase infection risk.
How often should I get this test?
Your doctor will determine the frequency based on your health needs, symptoms, or ongoing treatment. Regular monitoring may be needed if you have a chronic condition affecting neutrophils.
  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