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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 that helps fight infections.

Quick summary

["Neutrophils protect your body from bacterial infections."]

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

Key facts at a glance

LOINC
72941-8
Short code
Terazosin (neut) IgM SerPl Ql FC
Synonyms
Terazosin (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

Why Might You Need This Test?

Doctors may order a neutrophil count test to check for infections, inflammation, or blood disorders. It can also help monitor conditions like leukemia, autoimmune diseases, or reactions to certain medications. If you have symptoms like frequent infections, fatigue, or unexplained weight loss, your doctor might recommend this test.

What to Expect Before the Test

No special preparation is needed for this blood test. You may have a small needle inserted into your arm to draw a blood sample. If you’re nervous, let your healthcare provider know—they can help make it more comfortable.

What the Results Mean

Results show the number of neutrophils in your blood. A higher-than-normal count may indicate infection or inflammation, while a lower count could suggest immune problems or certain medications affecting your white blood cells. Your doctor will discuss these results with you in detail.

Common Conditions Monitored

Neutrophil counts are often checked in people with chronic illnesses like cancer, HIV, or autoimmune diseases. They’re also useful for tracking how well treatments are working or for diagnosing unexplained infections.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance

Short name

Neutrophil count

Frequently asked questions

What are the normal reference ranges for this test?
Normal ranges can vary by lab and individual health. Your doctor will compare your results to your own baseline or known reference values specific to your condition. For example, very high or very low counts may signal underlying health concerns that need further investigation.
Can I eat or drink before this test?
You can eat and drink normally before this test unless your doctor has given specific instructions. Blood tests like this are usually done on an empty stomach only if measuring certain substances (like glucose), but neutrophil counts don’t require fasting.
How long will it take to get my results?
Results are typically available within a few days to a week, depending on your lab’s processing time. Your doctor will contact you once they’re ready to discuss your findings.
  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