How reports print it
CRPСРБС-реактивный белокC-реактивный белокС реактивный белокC-reactive proteinC reactive protein
What it shows
A protein the liver releases into the blood in response to inflammation. It rises fast and falls fast.
Units and conversion
Base unit: mg/L.
- 1 mg/dL = 10 mg/L · 1 mg/L = 0.1 mg/dL
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, mg/L |
|---|---|
| Adults | 0–5 |
Range source: Лаборатория Хеликс — С-реактивный белок, количественно
Guideline thresholds
They apply on top of the range, for adults outside pregnancy. They are a reason to talk to a doctor, not a conclusion.
- CRP above 10 mg/L is, per Helix, a reason for further tests.
- С-реактивный белок, количественно — Лаборатория Хеликс, 2026
Good to know
High-sensitivity CRP (hs-CRP) is a separate test with its own range: it is used to assess cardiovascular risk in people without inflammation. With CRP above 10 mg/L, per Helix, further tests follow.
Why it can be higher
Common reasons discussed with a doctor. This is not a diagnosis.
- Infections: per Helix, usually 10–30 mg/L with viral and 40–100 and above with bacterial ones
- Injuries and surgery
- Chronic inflammatory conditions
- Smoking
Why it can be lower
- A low CRP is the usual picture without inflammation
What to ask a doctor
- Should it be repeated after recovery?
- Is this standard or high-sensitivity CRP?
Whom to see
A GP or internist.