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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 and inflammation.

Quick summary

["Neutrophils protect your body from bacterial infections and help reduce swelling."]

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

Key facts at a glance

LOINC
13836-2
Short code
Neutrophils NFr Prt Manual
Synonyms
Neutrophils NFr Prt Manual
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
manual-count
CPT
86592
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 healthcare provider may order this test to check for infections, autoimmune conditions, or other blood disorders. It can also help monitor treatments for conditions like leukemia or other blood-related illnesses.

What to Expect Before the Test

No special preparation is needed for this test. You may have a small needle inserted into a vein (usually in your arm) to draw blood. The process is quick and typically painless.

What the Results Mean

Results are usually reported as a count of neutrophils per microliter (µL) of blood. Lower than expected counts may indicate infections, immune disorders, or certain medications. Higher counts can suggest infections, inflammation, or other health issues.

Common Conditions Monitored

This test is often used to diagnose or monitor conditions such as neutropenia (low neutrophil count), infections, inflammatory diseases, or to assess the effectiveness of treatments like chemotherapy.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Neutrophils play a critical role in defending against bacterial infections. Abnormally low counts can leave you more vulnerable to infections, while abnormally high counts may signal ongoing inflammation or infection. Your provider will interpret results in the context of your overall health and symptoms.

Short name

Absolute Neutrophil Count (ANC)

Frequently asked questions

What causes a low neutrophil count?
Low neutrophil counts can be caused by infections, certain medications, autoimmune diseases, or blood disorders. Chronic conditions like kidney disease or liver disease may also affect neutrophil levels.
What causes a high neutrophil count?
High neutrophil counts often indicate infections, inflammation, or stress. Conditions like appendicitis, severe infections, or even physical exertion can trigger this response.
How often should I get this test?
The frequency depends on your health condition and treatment plan. Your healthcare provider will determine how often you need this test based on your specific needs and medical history.
  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