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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; low counts may signal immune issues or infections."]

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

Key facts at a glance

LOINC
5906-3
Short code
Neutrophils # Snv Auto
Synonyms
Neutrophils # Snv Auto
Category
chemistry
Sample
fluid
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
automated-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?

Doctors may order this test to diagnose or monitor conditions like infections, autoimmune diseases, or blood disorders. It helps assess your immune system’s ability to fight infections effectively.

What to Expect Before the Test

No special preparation is needed. A simple blood draw from a vein in your arm is all that’s required. The process usually takes a few minutes.

How the Results Are Interpreted

Results are compared to standard ranges for healthy adults. Very high or very low counts can indicate underlying health concerns that need further evaluation.

Common Conditions Affecting Neutrophil Counts

Low neutrophil counts (neutropenia) may occur with certain medications, blood cancers, or immune disorders. High counts (neutrophilia) can signal infections or inflammation.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

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 genetic conditions. Chronic neutropenia may require further testing to identify the root cause.
How long does it take to get results?
Results are typically available within one to three business days, depending on your lab’s processing time.
Can I eat or drink before this test?
No special diet or fasting is required for this test. However, always follow your healthcare provider’s instructions for any specific preparations.
  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