How reports print it
WBCLeukocytesWhite blood cell countКоличество лейкоцитов
What it shows
The total number of white blood cells — the cells of immune defence. The differential count gives the details.
Units and conversion
Base unit: ×10⁹/L.
- 1 ×10³/µL = 1 ×10⁹/L
Typical ranges
Your laboratory’s range comes first — it is printed on the report next to the result. Below is one laboratory’s adult range with its method: a reference, not a rule.
| Who | Range, ×10⁹/L |
|---|---|
| Adults | 4–10 |
Range source: Лаборатория Хеликс — Общий анализ крови (без лейкоцитарной формулы и СОЭ)
Good to know
«×10⁹/L» and «×10³/µL» are the same: 6.2 ×10³/µL = 6.2 ×10⁹/L.
Why it can be higher
Common reasons discussed with a doctor. This is not a diagnosis.
- Infection and inflammation
- Exercise and stress shortly before the test
- Smoking
- Pregnancy
- Some medicines
Why it can be lower
- Viral infections
- Some medicines
- Autoimmune processes
- Bone marrow differences — a doctor looks into them
What to ask a doctor
- What does the differential count show?
- Should the test be repeated after recovery?
Whom to see
A GP or internist.