CRP Report: Normal Range & How to Read It
CRP is a protein the liver makes when there is inflammation. A standard CRP test and the more sensitive hs-CRP test both report it in mg/L.
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What CRP measures
Inflammation
CRP rises within hours of inflammation or infection.
CRP and hs-CRP
hs-CRP reads very low levels and is used for heart health.
Trend over days
Doctors often repeat CRP to see if it is going down.
CRP normal range
Labs differ a little. Always compare with the range printed on your report.
| Test | Normal range | Unit | What it tells you |
|---|---|---|---|
| Standard CRP | |||
| CRP | Below 10 | mg/L | Higher values often come with inflammation or infection. |
| hs-CRP (heart health) | |||
| hs-CRP, lower band | Below 1 | mg/L | Lower heart risk band. |
| hs-CRP, average band | 1–3 | mg/L | Average heart risk band. |
| hs-CRP, higher band | Above 3 | mg/L | Your doctor reads it with cholesterol and other checks. |
Ranges from the NirogGyan biomarker library. Updated .
What a CRP report looks like
The same results in the usual lab layout, and as a NirogGyan Smart Report.
Numbers and ranges in rows
Each value on our report slider
How to read your CRP report
Check which test it is
A standard CRP and an hs-CRP have different ranges.
Find your result
CRP is printed in mg/L, sometimes in mg/dL.
Compare with the range
The Range column shows what is normal for that test.
Look for H or L
A flag marks a value outside the range. Your doctor reads what it means.
CRP report questions
What is a normal CRP level?
Many labs use below 10 mg/L for a standard CRP test. Check the range printed on your report, because methods differ.
What is the difference between CRP and hs-CRP?
Both measure the same protein. hs-CRP is a more sensitive test that reads very low levels, and doctors use it to look at heart health.
What does a high CRP mean?
CRP rises with inflammation or infection. It does not show the cause, so your doctor reads it with your symptoms.
How fast does CRP change?
CRP can rise within hours and fall within days, so doctors sometimes repeat it to see the trend.
Do I need to fast for a CRP test?
Usually no. Follow your lab's instructions if other tests are done at the same time.
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Upload your reportThis page explains how to read a lab report. It does not replace advice from your doctor. All sample values are made up.