Neutrophil Membrane Protein (NMP) or Neutrophil Membrane-Associated Antigen (NMA) Measurement
This test measures specific proteins or antigens found on the surface of neutrophils, a type of white blood cell involved in fighting infections.
["Understanding your neutrophil membrane protein levels can help assess immune function and response to infections."]
Key facts at a glance
- LOINC
- 85366-3
- Short code
- Neutrophil membrane IgM Ser Ql IF
- Synonyms
- Neutrophil membrane IgM 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
- 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 This Test Measures
Neutrophils are a key part of your immune system, helping your body fight off bacteria and other harmful invaders. This test detects proteins or antigens unique to the neutrophil membrane, which can be useful in diagnosing or monitoring certain conditions.
Why It Might Be Ordered
Your healthcare provider may order this test if you have symptoms of infection, immune disorders, or if you’re undergoing treatment for conditions like leukemia, autoimmune diseases, or chronic infections. It may also be used in research or specialized diagnostic settings.
Sample Collection and Preparation
A blood sample is typically drawn from a vein in your arm. The blood is processed to isolate neutrophils, and the test measures the presence or concentration of neutrophil membrane proteins using advanced laboratory techniques.
What to Expect Before the Test
No special preparation is usually needed, but you may be asked to avoid certain medications or activities for a short time before testing. Always follow your healthcare provider’s instructions.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
Changes in neutrophil membrane protein levels can indicate immune activation, infection, or underlying diseases like neutropenia (low neutrophil count), certain cancers, or inflammatory conditions. Elevated or altered levels may signal an active immune response or pathology requiring further evaluation.
Frequently asked questions
What does a high or low result mean?
How often will I need this test?
Can I eat or drink before this test?
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