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Monocyte and Macrophage Activation Marker Profile (Serum/Plasma)

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

This test measures certain markers related to immune cell activity, including substances released by monocytes and macrophages, which help assess inflammation or immune response.

Quick summary

["Understanding your immune system’s activity through key markers in your blood."]

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

Key facts at a glance

LOINC
32191-9
Short code
Monos+Macros CSF Ql Micro
Synonyms
Monos+Macros CSF Ql Micro
Category
chemistry
Sample
csf
Container
Sterile tube
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
microscopy-light
Specimen volume
1-2 mL
Stability
Immediate analysis required, Refrigerated: 1h
Hemolysis max
200
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms of chronic inflammation, immune system dysfunction, or conditions like autoimmune diseases, infections, or certain cancers. It could also be used to monitor treatment responses in these cases.

What the Test Involves

A blood sample is drawn from a vein, usually in your arm. The sample is then processed to measure specific substances linked to monocyte and macrophage activity. Results are compared to general reference ranges for these markers.

What the Results Typically Mean

Elevated levels of these markers may suggest an active immune response, such as infection, inflammation, or an overactive immune system. Lower levels might indicate suppressed immune activity or certain chronic conditions. Interpretation depends on clinical context and other test results.

Common Conditions Monitored

This test may help diagnose or track conditions like rheumatoid arthritis, lupus, infections, or certain cancers. It can also guide decisions about treatments that target immune cells.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

◆Associated findings1

Short name

None

Frequently asked questions

What does a positive or abnormal result mean?
An abnormal result doesn’t have a single interpretation—it depends on your overall health, symptoms, and other tests. For example, elevated markers might point to inflammation or infection, while lower levels could suggest immune suppression. Your doctor will discuss these findings with you in detail.
Frequency depends on your condition and treatment plan. Some patients may need this test periodically to monitor changes in their immune activity, while others may only need it once for diagnosis or evaluation.
Typically, you should avoid strenuous activity or certain medications that might affect immune markers 24 hours before the test. Follow your doctor’s specific instructions if you have any concerns.
Yes, results can vary based on your health status, treatments, or response to infections. Regular monitoring helps track these changes and adjust care as needed.
Always discuss your test results with your healthcare provider. They can explain what the numbers mean in relation to your health and help address any concerns you have.
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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