Skip to content

Neutrophil count (absolute)

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

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

Quick summary

["Neutrophils protect your body from bacteria and other invaders."]

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

Key facts at a glance

LOINC
72961-6
Short code
Ramipril (neut) IgM SerPl Ql FC
Synonyms
Ramipril (neut) IgM SerPl Ql FC
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
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 Is a Neutrophil Count?

Neutrophils are a key part of your immune system. They help your body fight off infections caused by bacteria. Your doctor may order this test to check if your neutrophil count is too high or too low, which could signal an infection, inflammation, or other health issues.

Why Might You Need This Test?

Doctors may request a neutrophil count to diagnose or monitor conditions like infections, certain cancers, autoimmune diseases, or blood disorders. It can also help assess how well your body is responding to treatment for these conditions.

What to Expect Before the Test

No special preparation is usually needed. You may have a small needle inserted into your arm or vein to draw blood. If you’re taking blood from your finger, it may sting briefly, but it’s generally quick and painless.

What Happens During the Test?

Blood is collected in a tube and sent to a lab, where it is analyzed to count the number of neutrophils. The results help your healthcare provider understand your immune health.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

A high neutrophil count may indicate an active infection, inflammation, or stress response. A low neutrophil count (neutropenia) can make you more susceptible to infections, especially bacterial ones, and may require medical attention to manage risk.

Short name

Neutrophil count

Frequently asked questions

What does a neutrophil count tell me about my health?
It shows how active your immune system’s neutrophil response is. High levels may mean your body is fighting infection or responding to stress, while low levels can signal a need for further investigation into immune function or underlying conditions.
How long does it take to get the results?
Results are typically available within 1 to 3 business days, depending on your lab’s processing time.
Can I eat or drink before this test?
You can eat and drink normally unless your doctor specifies otherwise. No fasting is required for this blood 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