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Lymphocytes

Lymphocyte Count
EDTA whole blood ×10⁹/L

About this test

T- and B-lymphocyte count. Key in viral infections and lymphoproliferative disorders.

Reference Ranges

Sex Age Range Notes
All 0–5 yrs 2 – 8 Child
All ≥ 18 yrs 1 – 4.5 Adult

Clinical Interpretation

Low / Decreased
Lymphopaenia — HIV, corticosteroids, SLE, post-viral, chemo/radiotherapy.
High / Increased
Lymphocytosis — viral infection (EBV, CMV), CLL, pertussis.

Related Tests

CMV IgM
Specimen
EDTA whole blood
Reporting Unit
×10⁹/L
Category
🩸 Hematology

⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.