Neutrophil Band Count (Absolute)
This test measures the absolute number of immature neutrophils (bands) in your blood, which are a type of white blood cell involved in early immune responses. Bands help identify infections or inflammation before other white blood cell counts rise.
["Bands can signal early infection or immune system activation before other blood tests show changes."]
Key facts at a glance
- LOINC
- 33388-0
- Short code
- Neuts Band NFr Pcar
- Synonyms
- Neuts Band NFr Pcar
- 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 This Test Might Be Ordered
Your healthcare provider may order this test if you have symptoms like fever, rapid heartbeat, or signs of infection (e.g., sore throat, cough, or skin rashes). It’s also used to monitor conditions affecting white blood cells, such as certain cancers or immune disorders, or to guide treatment decisions for infections.
What to Expect Before the Test
No special preparation is needed. A blood sample is drawn from a vein, usually in your arm, similar to other blood tests. The process takes about 15 minutes, and you may feel a slight pinch or discomfort during the draw.
What the Results Mean
Results show the count of immature neutrophils (bands) in your blood. Elevated bands often indicate early infection or inflammation, while very low counts may suggest immune suppression or certain blood disorders. Your provider will interpret results in the context of your symptoms and overall health.
Common Reasons for Testing
This test is often used to diagnose or monitor conditions like sepsis, severe infections, or neutropenia (low white blood cell counts). It may also help assess how your body responds to treatments for infections or immune-related diseases.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Neutrophil bands are critical in the early immune response. High counts can signal an active infection before other white blood cells (like neutrophils) increase. Low bands may indicate immune dysfunction or treatment side effects. Always discuss results with your provider to understand their specific relevance to your health.
Short name
Neutrophil Bands (Absolute)
Frequently asked questions
What is a band cell, and why do they matter?
How does this test differ from a complete blood count (CBC)?
Can diet or medications affect band cell counts?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
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.
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