hs-CRP (High-Sensitivity C-Reactive Protein) – hs-CRP is a sensitive marker of low-grade inflammation in the body, including inflammation in blood vessels linked to heart disease.
What hs-CRP measures
hs-CRP measures the level of C-reactive protein at the low concentrations relevant to cardiovascular risk.
Typical ranges
Below 1.0 mg/L is lower risk; 1.0-3.0 average risk; above 3.0 higher risk. Very high values suggest active infection or inflammation rather than baseline risk. Reference ranges differ between laboratories and by age and sex, so always read your result against the range printed on your own report.
What high results can mean
Elevated inflammation – either cardiovascular risk or a temporary infection/injury. Retesting when well clarifies the picture.
What low results can mean
Lower baseline inflammation, generally favorable.
How the test is done
A blood sample; not affected by fasting. Avoid testing during an acute illness. At-home collection works well for this marker when the sample is processed by a certified lab.
FAQ
What is a normal hs-CRP level?
Below 1.0 mg/L is lower risk; 1.0-3.0 average risk; above 3.0 higher risk. Very high values suggest active infection or inflammation rather than baseline risk. Your ideal target depends on your age, sex, and health history, so review results with a clinician.
What does a high hs-CRP result mean?
Elevated inflammation – either cardiovascular risk or a temporary infection/injury. Retesting when well clarifies the picture.
Can I test hs-CRP at home?
Yes. A blood sample; not affected by fasting. Avoid testing during an acute illness. An at-home sample processed by a certified lab gives reliable results.
This article is educational and not a substitute for medical advice. Discuss your results with a qualified clinician.