Hematology

Monocytes

Normal Range
2 - 8% of total WBC
Sample Type
Standard
Fasting
No
Unit
%

Monocytes are the largest type of white blood cell and are precursors to macrophages and dendritic cells. In a Differential Count, they represent the innate immune system's response to chronic infections, inflammation, and tissue repair. They play a critical role in phagocytosis (engulfing pathogens) and antigen presentation to T-cells.

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Interactive
%

Enter your lab result to see where you stand compared to the standard reference range.

Why Context Matters

Monocytosis (high monocytes) is often non-specific. It can be a transient finding during recovery from an acute infection or a sign of serious myeloproliferative disorders. A second opinion/hematopathology review is necessary if levels are persistently high to rule out Chronic Myelomonocytic Leukemia (CMML) versus reactive inflammatory states.

Lab ranges are statistical averages, not biological laws. "Normal" for a 20-year-old male isn't normal for a 60-year-old female.

Clinical References

Source-of-truth databases and clinical guidelines for Monocytes:

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Medically Reviewed by Dr. Binoy Babu, MBBS

Board Certified Doctor • 10+ Years Clinical Experience

Dr. Babu is a practicing physician dedicated to empowering patients with clear, actionable medical information. He founded 2opi to bridge the gap between complex lab reports and patient understanding, ensuring everyone has access to a reliable second opinion.

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