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Neutrophil count (absolute)

Published: August 9, 2026Updated: August 16, 2026

This test measures the number of neutrophils in your blood, a type of white blood cell that helps fight infections.

Quick summary

["Neutrophils are key defenders against bacterial infections; their count helps assess immune response and infection risk."]

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

Key facts at a glance

LOINC
98647-1
Short code
Sensory NC Pnl L LACN
Synonyms
Sensory NC Pnl L LACN
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
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 is this test done?

Your doctor may order this test to check for infections, inflammation, or blood disorders. High levels might suggest bacterial infection, stress, or certain diseases, while low levels could indicate immune suppression or conditions like leukemia.

What does the result mean?

Results are not provided with specific numeric ranges. Your doctor will interpret the result in relation to your overall health and symptoms. Elevated counts may need further evaluation for causes like infection or autoimmune conditions.

What can affect this test?

Factors such as recent illness, stress, certain medications (e.g., steroids), or blood collection timing can influence neutrophil counts. Infections, trauma, or inflammatory conditions may also temporarily alter results.

How is the test performed?

A small blood sample is drawn from a vein, usually in your arm. The sample is sent to a lab where it is analyzed to count neutrophils using automated blood testing technology.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance: Neutrophils are the body’s primary responders to bacterial infections. Abnormal counts can signal underlying health issues, including chronic infections, inflammatory diseases, or blood disorders. Monitoring these cells helps guide treatment for infections, autoimmune conditions, or conditions affecting white blood cell function.

Short name

Neutrophil count

Frequently asked questions

What are normal neutrophil counts?
Normal ranges vary by lab and individual. Your doctor will use your specific results along with your health history and symptoms to determine if your count is within expected limits.
Can I eat or drink before this test?
No special preparation is needed for this test. However, avoid heavy meals or alcohol before blood collection to ensure accurate results.
How long does it take to get results?
Results are typically available within 1–2 business days, depending on lab processing times. Your doctor will discuss findings with you during your follow-up visit.
  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