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Neutrophil Membrane Antigen (or Membrane-Associated Neutrophil Marker) Detection

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

This test measures certain proteins found on the surface of neutrophils, white blood cells that help fight infections. It may be used to assess immune function or detect conditions affecting neutrophil activity.

Quick summary

["This test helps evaluate how well your immune system’s neutrophil cells are functioning."]

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

Key facts at a glance

LOINC
85365-5
Short code
Neutrophil membrane Ab Ser Ql IF
Synonyms
Neutrophil membrane Ab Ser Ql IF
Category
chemistry
Sample
serum
Container
Red-top tube (SST)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
if
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 recommend this test if you have symptoms like frequent infections, unusual immune responses, or conditions such as chronic granulomatous disease or certain autoimmune disorders. It could also be part of a broader evaluation for unexplained immune system issues.

What to Expect Before the Test

No special preparation is typically needed. You may provide a blood sample, often drawn from a vein in your arm. If you’re concerned about discomfort, let your provider know.

What the Test Results Mean

Results may indicate whether your neutrophils have normal or abnormal surface proteins. Abnormal findings could suggest immune dysfunction or other underlying health concerns.

Common Conditions Monitored

This test is sometimes used alongside others to help diagnose conditions like chronic infections, certain cancers, or immune system disorders that affect neutrophil behavior.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Neutrophil Membrane Proteins in Health and Disease

Short name

Neutrophil Membrane Protein Test

Frequently asked questions

How is the test performed?
The test involves collecting a small blood sample, which is then analyzed to detect specific proteins on neutrophils. The method may include techniques like nephelometry or immunoassay to measure these markers.
What are typical reference ranges?
Reference ranges are not universally standardized for this test and may vary by lab. Your results will be compared to your own baseline or clinical context, not a single range.
Can this test be done at home?
No, this test requires a lab sample, typically collected by a healthcare professional. Home testing for this specific marker is not available.
  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