Know Your Blood Parameter : Monocytes
- Zeenat Khalil
- May 24
- 1 min read
Updated: May 27

1. Parameter Name
Monocytes
2. Test Type
Blood
3. Normal Range
Absolute Count: 200 – 800 cells/µL
Percentage: 2% – 8% of total WBCs
4. High Levels Indicate
Monocytosis — may be due to chronic infections (e.g., tuberculosis), inflammatory conditions (e.g., IBD), recovery from acute infections, or leukemia (e.g., monocytic leukemia).
5. Low Levels Indicate
Monocytopenia — can occur with bone marrow suppression, aplastic anemia, chemotherapy, or use of corticosteroids.
6. Why It's Tested
To help identify infections, inflammatory diseases, autoimmune conditions, or bone marrow disorders.
7. Associated Symptoms (if abnormal)
High: Fatigue, fever, inflammation, persistent infection
Low: Frequent infections, poor wound healing
8. What To Do If Abnormal
Repeat test if temporarily altered due to acute infection. For persistent abnormalities, further testing (like bone marrow exam or imaging) may be needed.
9. Common Conditions Related
Tuberculosis, chronic inflammatory diseases, leukemia, lupus, sarcoidosis.
10. Nutrition or Lifestyle Connection
Support with anti-inflammatory foods (omega-3s, antioxidants), regular exercise, and managing chronic stress to regulate immune function.
11. References (APA Format)
MedlinePlus. (2023). Monocytes blood test. U.S. National Library of Medicine. https://medlineplus.gov/lab-tests/monocytes/
Pagana, K. D., & Pagana, T. J. (2021). Mosby’s diagnostic and laboratory test reference (15th ed.). Elsevier.
American Society of Hematology. (2022). White blood cell differential. https://www.hematology.org/education/patients/blood-basics
Mayo Clinic. (2022). Complete blood count (CBC) with differential. https://www.mayoclinic.org/tests-procedures/complete-blood-count
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