What can an hs-CRP test tell you?
An hs-CRP test offers a read on low-grade systemic inflammation. Persistently elevated levels (generally greater than 3.0 mg/L) are associated with a higher risk of cardiovascular events, while values below 1.0 mg/L suggest a lower risk.
Because hs-CRP is non-specific, elevations can also come from infections, autoimmune conditions, injuries, or other inflammatory states. That’s why healthcare providers interpret hs-CRP together with traditional heart disease risk factors and, when appropriate, may repeat the test to confirm a chronic elevation rather than a temporary spike.
In people at borderline or intermediate risk by standard calculators, hs-CRP can refine risk estimates and sometimes influence conversations about preventive strategies, such as lipid-lowering therapy, lifestyle intensity, or closer follow-up.
What is being tested?
CRP is a type of protein made by the liver in response to inflammation in the body. The high-sensitivity test accurately measures lower concentrations, down to about 0.3 mg/L, which helps detect subtle, sustained inflammation linked to heart health issues.
Where is the hs-CRP test typically included?
hs-CRP is not part of routine panels like the comprehensive metabolic panel (CMP) or complete blood count (CBC). It is ordered when assessing heart health risks and may be combined with:
Lipid panel (total cholesterol, LDL, HDL, triglycerides)
Blood pressure assessment
Glucose/A1c (diabetes risk)
Other cardiac risk-enhancing markers when indicated
Current guidelines from the American Heart Association and American College of Cardiology recognize hs-CRP (particularly ≥2 mg/L) as a risk-enhancing factor that can influence preventive treatment decisions in adults at borderline or intermediate risk for heart disease.
Who should get an hs-CRP test?
There are no universal screening recommendations for this test. Providers may consider hs-CRP when:
You fall into a borderline (5 to 7.5 percent) or intermediate (≥7.5 to <20 percent) 10‑year heart disease risk group, and results might change management.
Traditional risk factors alone don’t provide a clear path forward.
There is a strong family history of early heart disease or other risk-enhancers.
Guidelines emphasize discussing hs-CRP as one piece of the risk picture and using it to inform shared decisions about lifestyle emphasis and preventive therapies.
