Elevated Leukocytes – Causes, Symptoms and Diagnosis
High leukocyte counts often indicate infections or inflammation. Causes and diagnosis explained.
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When leukocytes are elevated, the condition is called leukocytosis.
Leukocytes (white blood cells) are a crucial part of the immune system, helping to fight pathogens such as bacteria, viruses, or fungi. An increased blood count often signals an acute or chronic inflammatory response.
Common causes of high leukocyte counts include infections, autoimmune diseases, allergies, tissue damage, or stress reactions. Certain medications like corticosteroids or conditions such as leukemia can also raise the levels. Symptoms may include fever, fatigue, or swollen lymph nodes.
Diagnosis is made via a complete blood count (CBC), sometimes supplemented with additional lab tests, imaging, or bone marrow analysis. Treatment depends on the underlying cause – for infections, it may involve antibiotics, antiviral medication, or anti-inflammatory therapy.
Key Facts about Elevated Leukocytes
- Medical term: leukocytosis
- Common cause: infections and inflammation
- Other causes: allergies, autoimmune diseases, leukemia
- Diagnosed via complete blood count
- Treatment depends on underlying condition
Literature references:
- McPherson, R. A., & Pincus, M. R. (2021). Henry's Clinical Diagnosis and Management by Laboratory Methods. Elsevier.
- Bain, B. J. (2022). Blood cells: A practical guide. Wiley-Blackwell.
- Dale, D. C., & Boxer, L. (2020). Leukocytosis. New England Journal of Medicine.
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