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Monocyte count (qualitative probe-based flow cytometry)

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

This test measures the presence and relative proportion of monocytes in your blood using a specialized probe-based flow cytometry method.

Quick summary

["A qualitative check of your blood’s monocyte levels to help assess immune function or monitor conditions affecting white blood cells."]

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

Key facts at a glance

LOINC
92780-6
Short code
L monocytog DNA Bld Pos Ql NAA+probe
Synonyms
L monocytog DNA Bld Pos Ql NAA+probe
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
probe-amp-tar
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your healthcare provider may recommend this test if you have symptoms like persistent fatigue, unexplained infections, or signs of an immune disorder. It could also be part of a broader blood evaluation when other tests suggest abnormal white blood cell counts.

What to Expect Before the Test

No special preparation is needed. You’ll have a small needle inserted into your arm or vein to draw a blood sample. The test is quick and typically done in a clinic or lab setting.

What the Results Mean

Results are qualitative, meaning they indicate whether monocytes appear in expected or unexpected amounts rather than providing exact numbers. Elevated or reduced monocyte levels may signal underlying conditions like chronic inflammation, infections, or certain cancers.

Common Conditions Monitored

This test helps diagnose or monitor conditions such as chronic infections, autoimmune diseases, or leukemia, where monocyte counts can be significantly altered.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical significance: Monocytes are a type of white blood cell involved in immune response and inflammation. Abnormal levels may indicate immune dysfunction, infection, or systemic diseases. While this test doesn’t provide exact counts, it can guide further investigation if needed.

Short name

Monocyte count (qualitative)

Frequently asked questions

What does a positive or abnormal result mean?
An abnormal result means your monocytes may be either too high or too low compared to what’s expected. This could suggest conditions like chronic infections, autoimmune disorders, or other immune-related issues. Your doctor will discuss the next steps based on your overall health and symptoms.
Does this test require fasting?
No fasting is required for this test. Blood is drawn at any time of day, similar to other routine blood tests.
How long will it take to get my results?
Results are typically available within a few days to a week, depending on lab processing times. Your healthcare provider will contact you once they are ready.
  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