Total Leucocyte Count (TC)
- Sample Type
- Standard
- Fasting
- No
- Unit
- cells/cu.mm
The Total Leucocyte Count (TLC) measures the total number of white blood cells (WBCs) in a microliter of blood. Within the context of an Hb, Tc, Dc & Esr panel, it serves as a primary indicator of the body's immune response. Elevated levels typically suggest an active defense against bacterial infections, tissue necrosis, or inflammation, while low levels may indicate bone marrow suppression, viral infections, or autoimmune disorders. It is a critical baseline for monitoring systemic health.
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Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
TLC can be transiently elevated by physical stress, emotional stress, intense exercise, or medications like corticosteroids and lithium. Conversely, some viral infections can cause a temporary dip that may be misinterpreted as a chronic bone marrow issue without serial testing.
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 (TC):
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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