Know Your Blood Parameter : Neutrophils
- Zeenat Khalil
- May 24
- 1 min read
Updated: May 27
1. Parameter Name
Neutrophils
2. Test Type
Blood
3. Normal Range
Absolute Count: 2,500 – 7,000 cells/µL
Percentage: 40% – 60% of total WBCs
4. High Levels Indicate
Neutrophilia — often caused by bacterial infections, inflammation, stress, smoking, corticosteroids, or chronic myeloid leukemia.
5. Low Levels Indicate
Neutropenia — may result from viral infections, bone marrow disorders, autoimmune diseases, chemotherapy, or severe infections.
6. Why It's Tested
To evaluate immune function, detect infections, assess bone marrow activity, or monitor response to chemotherapy or immunosuppressants.
7. Associated Symptoms (if abnormal)
High: Fever, signs of infection, inflammation
Low: Frequent infections, mouth ulcers, fever, slow healing
8. What To Do If Abnormal
Seek medical advice. Depending on levels and symptoms, further tests may include blood cultures, bone marrow biopsy, or immunological workup.
9. Common Conditions Related
Bacterial infections, sepsis, leukemia, autoimmune conditions (like lupus), chemotherapy-induced neutropenia.
10. Nutrition or Lifestyle Connection
Balanced diet rich in vitamins B12, folate, and zinc may support WBC production. Good hygiene reduces infection risk when neutrophils are low.
11. References (APA Format)
MedlinePlus. (2023). Neutrophils blood test. U.S. National Library of Medicine. https://medlineplus.gov/lab-tests/neutrophils/
Pagana, K. D., & Pagana, T. J. (2021). Mosby’s diagnostic and laboratory test reference (15th ed.). Elsevier.
American Society of Hematology. (2021). White blood cell differential test. 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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