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High-sensitivity C-reactive protein

hs-CRP

High-sensitivity CRP is one of the most underused metabolic risk markers in primary care. What hsCRP measures, how it connects insulin resistance to cardiovascular disease, and what actually moves the number.

Also written as hsCRP, CRP, C-reactive protein.

What does my hs-CRP mean?

Enter your result to see which clinical range it falls into.

hs-CRP interpreter
1310
1.5 mg/LAverage risk

Average cardiovascular risk. Often an early signal of insulin resistance or visceral fat — worth pairing with a fasting insulin and HOMA-IR.

Risk categories: AHA/CDC consensus statement (Pearson et al., Circulation 2003). Estimate for education only — not a diagnosis. Interpret lab results with your clinician.

hs-CRP ranges, and what each one means

These are the same thresholds the interpreter above uses.

Range Category What it means
< 1 mg/L Low risk Low cardiovascular risk category.
1–3 mg/L Average risk Average cardiovascular risk. Often an early signal of insulin resistance or visceral fat — worth pairing with a fasting insulin and HOMA-IR.
3–10 mg/L High risk Elevated cardiovascular risk. The 2018 AHA/ACC guideline treats hs-CRP ≥ 2.0 mg/L as a risk-enhancing factor.
≥ 10 mg/L Possible acute process Above 10 mg/L usually reflects an acute process (infection, injury, autoimmune flare). Retest in 2–4 weeks before using it for cardiovascular risk.

Where these come from: Risk categories: AHA/CDC consensus statement (Pearson et al., Circulation 2003).

Estimate for education only — not a diagnosis. Interpret lab results with your clinician.

The short version

  • hsCRP (high-sensitivity C-reactive protein) is a liver-produced inflammatory protein that predicts cardiovascular events independently of LDL cholesterol.
  • Levels above 3.0 mg/L indicate elevated cardiovascular risk; levels above 10 mg/L suggest active infection or injury and should prompt clinical evaluation before being used for risk stratification.
  • Visceral fat is a primary driver of chronic low-grade inflammation — elevated hsCRP is often a downstream signal of insulin resistance, not a standalone problem.
  • The JUPITER trial showed that treating elevated hsCRP with rosuvastatin — even in patients with low LDL — significantly reduced cardiovascular events.
  • The most effective interventions for lowering hsCRP are weight loss, exercise, sleep optimization, omega-3 fatty acids, and addressing underlying insulin resistance.

The full guide

hs-CRP (High-Sensitivity CRP): The Inflammation Marker That Connects Metabolic Disease to Heart Attacks

11 min read · Sean Moshrefi, PharmD, MS

Read →

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