Lymphocytes
- Sample Type
- Standard
- Fasting
- No
- Unit
- %
Lymphocytes are a type of white blood cell (leukocyte) crucial for the adaptive immune system. In the context of a Differential Count (DC), this component measures the percentage of lymphocytes (including T cells, B cells, and Natural Killer cells) relative to the total white blood cell count. They are primary responders to viral infections and are responsible for antibody production and cell-mediated immunity. Tracking this percentage helps differentiate between viral, bacterial, and inflammatory conditions.
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Enter your lab result to see where you stand compared to the standard reference range.
Why Context Matters
Relative lymphocyte percentages can be misleading if the Total Count (TC) is abnormal (e.g., a 'high' percentage might actually be a normal absolute count if the total WBC is low). Stress, recent strenuous exercise, and corticosteroid use can acutely lower lymphocyte counts.
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 Lymphocytes:
Official Sources
Research & Guidelines
- PubMed: Lymphocytes Clinical GuidelinesNCBI / PubMed
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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