hs-CRP (High Sensitivity CRP) Test
Category
Cardiology
Specimen
Blood
Organ System
—
Available At
0 labs
About hs-CRP (High Sensitivity CRP) Test
hs-CRP, or high-sensitivity C-Reactive Protein, is a specialized version of the standard CRP test capable of detecting much smaller, subtler elevations in this inflammation marker — differences that a routine CRP test would miss entirely.
This heightened sensitivity makes hs-CRP particularly useful for a very different purpose than standard CRP: rather than diagnosing acute infection, it's used to detect the low-grade, chronic inflammation that plays a key role in the development of atherosclerosis, the underlying process behind most heart attacks and strokes.
Research has consistently shown that people with persistently elevated hs-CRP, even within what would be considered a 'mild' range, carry a measurably higher long-term risk of cardiovascular events, independent of their cholesterol levels.
Because of this, hs-CRP is increasingly used alongside a standard lipid profile to give a more complete picture of a person's overall cardiovascular risk, particularly for those with borderline cholesterol results.
When Should You Get hs-CRP (High Sensitivity CRP) Test
hs-CRP is recommended for:
- Assessing long-term cardiovascular disease risk
- People with a family history of heart disease
- Refining risk assessment when cholesterol levels are borderline
- Monitoring cardiovascular risk alongside lifestyle or medical interventions
Conditions hs-CRP (High Sensitivity CRP) Test Can Detect
hs-CRP is used primarily to assess risk of:
- Heart attack (myocardial infarction)
- Stroke
- Atherosclerosis and chronic low-grade vascular inflammation
How to Prepare for hs-CRP (High Sensitivity CRP) Test
- Fasting is generally not required for hs-CRP.
- Avoid testing during an active infection, cold, or flare of a chronic inflammatory condition, since these will temporarily raise hs-CRP and won't reflect your true baseline cardiovascular risk.
- A standard venous blood sample is used.
hs-CRP (High Sensitivity CRP) Test Normal Reference Ranges
| Parameter | Normal Range |
|---|---|
| Low Risk | Below 1.0 mg/L |
| Average Risk | 1.0–3.0 mg/L |
| High Risk | Above 3.0 mg/L |
Because even minor infections can temporarily raise hs-CRP well above your true baseline, doctors often recommend repeating an abnormal result on a separate, healthy day before using it for cardiovascular risk assessment.
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Frequently Asked Questions About hs-CRP (High Sensitivity CRP) Test
How is hs-CRP different from checking for infection?
hs-CRP is designed to detect much smaller, chronic elevations related to cardiovascular risk, not the large spikes seen in acute infection — for suspected infection, a standard CRP test is more appropriate.
Should hs-CRP be tested alongside cholesterol?
Many cardiologists recommend it, particularly for people with borderline lipid results, since it adds independent information about cardiovascular risk that cholesterol alone doesn't capture.
Can lifestyle changes lower hs-CRP?
Yes, weight loss, regular exercise, smoking cessation, and a heart-healthy diet have all been shown to meaningfully reduce hs-CRP levels over time.
Medical Disclaimer: This page is for informational purposes only and does not constitute medical advice. Lab test results should always be interpreted by a qualified healthcare professional in the context of your clinical history. Do not self-diagnose or alter your treatment based on test results alone.
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