hs-CRP
A sensitive marker of systemic inflammation — and a cardiovascular risk indicator.
What is it
High-sensitivity C-reactive protein measures low-grade systemic inflammation. It is a more sensitive version of the standard CRP test, designed to detect lower levels relevant to cardiovascular research.
Why it's measured
hs-CRP has been associated with cardiovascular risk in large epidemiologic studies and is included in some cardiovascular risk calculators.
Reference range
Standard laboratory reference
< 1.0 mg/L
Reference ranges vary by laboratory. Your individual reference range will appear on your test report and should be interpreted by your physician in the context of your overall health profile.
Where does your number land?
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Drag to your own hs-CRP (high-sensitivity) result.
Educational only, not a diagnosis. Ranges vary by laboratory. See which panel includes hs-CRP (high-sensitivity).
What results may indicate
Elevated
Values 1–3 mg/L (intermediate) and >3 mg/L (high) have been associated with elevated cardiovascular risk in research literature.
Lower
Is generally considered favorable.
These associations are general. They are not a personal diagnosis or prediction. Discuss your individual results with your physician in the context of your full health profile.
When it's measured
Used in cardiovascular risk evaluation. Acute infection or injury can transiently elevate values.
Related markers
Common questions
High-sensitivity C-reactive protein measures low-grade systemic inflammation. It is a more sensitive version of the standard CRP test, designed to detect lower levels relevant to cardiovascular research.
It's one of the markers used to build a fuller picture of your health. On its own it tells you very little, so it's most informative when reviewed alongside related markers.
It's measured from a standard blood draw at Quest or LabCorp. hs-CRP (high-sensitivity) is one of the markers included in the OPTML Apex Panel, where your results are read across systems and reviewed by a U.S.-licensed physician.
Reference ranges vary by laboratory, and a single value rarely tells the whole story. Review your result with a physician in the context of your other markers, symptoms, and history.
hs-CRP (high-sensitivity) is one signal among many. Answer a few quick questions and we’ll point you to the panel that fits.
Related symptoms
A symptom is a signal, not a diagnosis. These guides explain what the evidence shows and the blood markers, including this one, that help find the cause.
Regular exercise is associated with lower chronic inflammation over time. There is an important timing caveat: a single hard or unaccustomed session raises hs-CRP acutely for days. Drawing this marker soon after heavy training can produce a reading that says more about your last workout than your baseline. If you want a structured place to start, the training library lists every programme we publish by days per week and equipment.
Measured in
A complete look at your heart, hormones, metabolism, inflammation, and longevity systems — drawn at Quest or LabCorp, reviewed by a U.S.-licensed physician.
Find the right panel →This information is for general educational purposes only and is not medical advice. Lab results alone are not intended to diagnose, treat, or cure any condition and do not replace the advice of a healthcare provider. OPTML does not offer medical advice, a diagnosis, medical treatment, or any form of medical opinion.
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