Total Leucocyte Count (WBC)
- Sample Type
- Standard
- Fasting
- No
- Unit
- cells/µL
The Total Leucocyte Count measures the total number of white blood cells (WBCs) per microliter of blood. In the TC & DC panel, it acts as a primary indicator of the body's immune response. It helps clinicians differentiate between bacterial infections, viral infections, and inflammatory states, while also monitoring the bone marrow's capacity to produce immune cells.
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Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
WBC counts fluctuate significantly based on diurnal rhythms, recent smoking, stress, and medications like corticosteroids, which can artificially elevate the count without an underlying infection.
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 Total Leucocyte Count (WBC):
Official Sources
- WBC count: MedlinePlus Medical EncyclopediaMedlinePlus
Research & Guidelines
Related Indicators
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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