Skip to content

Neutrophil Absolute Count (Serum/plasma Substance Concentration)

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 and inflammation.

Quick summary

["Neutrophils are key defenders against bacterial infections and help manage inflammation."]

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

Key facts at a glance

LOINC
17349-2
Short code
Neutrophil IgG Ser-aCnc
Synonyms
Neutrophil IgG Ser-aCnc
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
CPT
82784
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 Are and Their Role

Neutrophils are a type of white blood cell that play a crucial role in your immune system. They are among the first responders to infections and help eliminate bacteria and other pathogens. When your body detects an infection or injury, neutrophils rush to the site to fight the threat and clean up damaged tissues.

Why This Test Might Be Ordered

Your healthcare provider may order this test to evaluate your immune response, diagnose infections (especially bacterial), or assess conditions affecting white blood cell counts, such as certain cancers, autoimmune diseases, or blood disorders.

When to Expect Results

Results from this test are typically available within 1 to 3 business days, depending on your lab’s processing schedule. Your doctor will discuss the results with you and explain any findings or next steps.

Common Conditions Monitored

High neutrophil counts (neutrophilia) can indicate infections, inflammation, or stress responses, while low counts (neutropenia) may signal immune deficiencies, certain medications, or underlying diseases like leukemia.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

Neutrophil Count

Frequently asked questions

How is this test different from a complete blood count (CBC)?
While a CBC provides a broader overview of your blood cells (including red blood cells, platelets, and other white blood cell types), this test specifically focuses on measuring only the neutrophil count. It’s often used alongside other white blood cell counts in the CBC to assess immune function.
What does a normal range mean for this test?
There is no single ‘normal’ range for neutrophils because it can vary based on factors like age, overall health, and medical conditions. Your results will be compared to your baseline or clinical context rather than a fixed range. Your doctor will interpret the results in relation to your specific situation.
Can lifestyle or diet affect neutrophil counts?
Yes, certain foods, medications, and lifestyle factors—such as smoking, stress, or chronic illnesses—can influence neutrophil levels. If you suspect lifestyle changes may impact your test results, discuss this with your healthcare provider before or after the test.
  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