Toolbox
hs-CRP Interpreter
A single marker that reflects inflammation across your entire body. Enter your hs-CRP to understand what it reveals about your cardiovascular and metabolic risk — and what drives it.
Your hs-CRP
hs-CRP is measured in mg/L (not mg/dL). Most labs report it this way.
Enter your high-sensitivity C-reactive protein result from your most recent blood work.
Medications that may affect your result
Statins (atorvastatin, rosuvastatin) reduce hs-CRP independently of their effect on cholesterol. If you are on a statin, your unmedicated hs-CRP would likely be higher.
NSAIDs (ibuprofen, naproxen) can acutely lower CRP. A reading taken while using NSAIDs may underrepresent your baseline inflammation.
Corticosteroids (prednisone, dexamethasone) suppress inflammation broadly, including CRP. Results while on corticosteroids do not reflect your natural inflammatory state.
Hormone replacement therapy (estrogen-based HRT) can elevate CRP, particularly oral forms. This elevation may not reflect true cardiovascular risk.
If you are taking any of these medications, your results reflect the medicated state. Discuss trends and context with your healthcare provider.
Frequently asked questions
What does hs-CRP measure?
hs-CRP is the high-sensitivity version of the C-reactive protein test. CRP is a protein the liver makes in response to inflammation anywhere in the body; the high-sensitivity assay can detect the very low levels that mark chronic, low-grade inflammation — the kind linked to cardiovascular and metabolic disease. A standard CRP test is used for obvious acute inflammation like infection or injury, while hs-CRP is designed specifically for cardiovascular risk stratification.
What's a normal hs-CRP, and what counts as high?
Following AHA/CDC cardiovascular-risk thresholds: below 1.0 mg/L is low risk, 1.0 to 3.0 mg/L is average risk, and 3.0 to 10.0 mg/L is high risk. A value above 10.0 mg/L almost always signals acute inflammation — a recent infection, injury, or flare — rather than baseline cardiovascular risk, and should be retested after recovery rather than read as a risk score.
Why does one hs-CRP reading need to be repeated?
hs-CRP is non-specific: it rises with any inflammation, not just the cardiovascular kind. A single elevated reading can reflect a recent cold, a dental procedure, a minor injury, or an autoimmune flare rather than chronic metabolic inflammation. For that reason the AHA recommends two readings about two weeks apart, using the lower of the two as your baseline — so a transient spike is not mistaken for a lasting risk signal.
How is hs-CRP connected to insulin resistance and metabolic health?
Chronic inflammation and insulin resistance reinforce each other. Excess visceral fat is metabolically active and releases inflammatory signals that both raise hs-CRP and blunt the body’s response to insulin. So an elevated hs-CRP often travels alongside a rising fasting insulin, a higher TyG index, and an unfavorable TG:HDL ratio — part of the same underlying metabolic picture rather than a separate problem.
What lowers hs-CRP?
Because hs-CRP tracks the body’s inflammatory load, it responds to the same levers that improve metabolic health: losing visceral fat, reducing refined carbohydrates and added sugars, regular movement, consistent sleep, and managing chronic stress. Statins and some other medications lower CRP directly, so a reading under those treatments reflects the medicated state. Because a single value is noisy, judge progress on the trend across repeated readings rather than any one measurement.
About this tool
Classification
Low cardiovascular risk: below 1.0 mg/L. Average risk: 1.0-3.0 mg/L. High risk: 3.0-10.0 mg/L. Very high (likely acute inflammation): above 10.0 mg/L. These thresholds follow AHA/CDC guidelines for cardiovascular risk assessment.
What is hs-CRP?
C-reactive protein (CRP) is produced by the liver in response to inflammation anywhere in the body. The “high-sensitivity” (hs) version of the test can detect very low levels of CRP, making it useful for assessing chronic low-grade inflammation associated with cardiovascular and metabolic disease. Standard CRP tests are used for acute inflammation (infection, injury); hs-CRP is specifically designed for cardiovascular risk stratification.
Known Limitations
hs-CRP is non-specific — it rises in response to any inflammation, not just cardiovascular. A single elevated reading may reflect a recent cold, dental procedure, minor injury, or autoimmune flare rather than chronic metabolic inflammation. For cardiovascular risk assessment, the AHA recommends two readings taken two weeks apart, using the lower value. hs-CRP above 10 mg/L almost always indicates acute inflammation and should not be used for cardiovascular risk assessment until retested after recovery.
Sources
Ridker PM. “High-sensitivity C-reactive protein as a predictor of cardiovascular disease.” Circulation, 2003. Pearson TA, et al. “Markers of inflammation and cardiovascular disease.” AHA/CDC Scientific Statement. Circulation, 2003.
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