Cardio IQ HS CRP (hs-CRP) Biomarker Testing
It measures low-grade inflammation linked to heart risk and helps guide next steps with your clinician, with easy ordering through Vitals Vault/Quest.
With Vitals Vault, you have access to a comprehensive range of biomarker tests.
Cardio IQ HS CRP is a high-sensitivity C-reactive protein (hs-CRP) blood test. It measures very small amounts of CRP, a protein your liver makes in response to inflammation.
Unlike a standard CRP test that is often used when a doctor suspects a significant infection or inflammatory disease, hs-CRP is designed to pick up low-grade, “background” inflammation. That matters because persistent low-grade inflammation can be one piece of your overall cardiovascular risk picture.
Your hs-CRP result is not a diagnosis by itself. It is most useful when you interpret it alongside other risk factors and labs, and when you repeat it at an appropriate time if something temporary (like a cold) could have pushed it up.
Do I need a Cardio IQ HS CRP test?
You might consider an hs-CRP test if you are trying to understand your long-term heart and blood vessel risk beyond cholesterol numbers alone. It can be especially helpful when your risk feels “in-between,” such as when you have a family history of early heart disease, borderline blood pressure, metabolic concerns, or you are deciding how aggressive to be with lifestyle changes and follow-up testing.
This test can also be useful if you have a prior elevated hs-CRP and you want to confirm whether it was a temporary spike or a persistent pattern. Because hs-CRP is sensitive to many short-term triggers, repeating the test (when you are well) is often part of making the result meaningful.
You do not usually need hs-CRP to evaluate acute symptoms like fever, severe body aches, or a suspected infection. In those situations, clinicians typically use a standard CRP and other diagnostic tests.
If you are using this test to guide decisions, plan to review the result with your clinician. The number can support clinician-directed care, but it cannot tell you on its own what condition is present or what treatment you need.
This is a laboratory blood test typically performed in a CLIA-certified lab; results should be interpreted in clinical context and are not a standalone diagnosis.
Lab testing
Order Cardio IQ HS CRP through Vitals Vault
Schedule online, results typically within about a week
Clear reporting and optional clinician context
HSA/FSA eligible where applicable
Get this test with Vitals Vault
Vitals Vault lets you order Cardio IQ HS CRP directly and complete your blood draw through the Quest network. That can be useful if you are tracking cardiovascular risk over time or if you want to bring a clear, recent data point to a clinician visit.
After your results post, you can use PocketMD to talk through what “low,” “in-range,” or “high” can mean for you, what temporary factors might have affected the number, and which companion tests are commonly paired with hs-CRP for a more complete picture.
If your result is elevated, Vitals Vault makes it easy to plan a sensible retest window and to broaden your lab map when needed (for example, adding lipids, ApoB, or metabolic markers) rather than guessing from a single number.
- Order online and draw at Quest locations
- PocketMD guidance for next-step questions to ask
- Designed for trending results over time
Key benefits of Cardio IQ HS CRP testing
- Detects low-grade inflammation that a standard CRP test may miss.
- Adds context to cardiovascular risk when cholesterol results do not tell the full story.
- Helps you decide whether an elevated result is persistent by supporting repeat testing when you are well.
- Can motivate targeted lifestyle changes by giving you a measurable inflammation marker to track.
- Supports more personalized clinician conversations about prevention intensity (not just “normal vs abnormal”).
- Pairs well with ApoB, lipids, and metabolic markers to clarify whether risk is driven by particles, inflammation, or both.
- Provides a consistent lab datapoint you can store, trend, and review with PocketMD.
What is Cardio IQ HS CRP?
hs-CRP stands for high-sensitivity C-reactive protein. CRP is an “acute phase” protein made mostly by your liver when your immune system signals that inflammation is present somewhere in the body.
The “high-sensitivity” part refers to the assay’s ability to measure CRP at very low concentrations. Those low concentrations are common in everyday life and can reflect chronic, low-grade inflammation that may be associated with higher cardiovascular risk in some people.
hs-CRP does not tell you where inflammation is coming from. It can rise with infections, injuries, dental problems, autoimmune conditions, obesity, smoking, and many other situations. That is why timing and context matter.
Clinicians often interpret hs-CRP as one risk-enhancing factor among many. It is most informative when you consider it alongside blood pressure, blood sugar/insulin resistance, lipids (including ApoB), smoking status, family history, and your overall health pattern.
hs-CRP vs standard CRP
A standard CRP test is geared toward detecting larger increases seen with significant inflammation, infection, or flare-ups of inflammatory disease. hs-CRP is tuned to detect smaller increases that can still be meaningful for long-term risk assessment.
Why inflammation matters for cardiovascular health
Inflammation can contribute to how plaques form and behave in arteries. Even when LDL cholesterol is controlled, inflammation can still be a separate pathway that influences risk, which is why hs-CRP can add useful context for prevention planning.
What do my Cardio IQ HS CRP results mean?
Low hs-CRP
A low hs-CRP generally suggests you do not have much measurable systemic inflammation at the time of the test. In cardiovascular prevention, this is often reassuring when it matches an overall healthy risk profile. It does not rule out heart disease, and it does not guarantee low risk if other major risk factors are present. If you are trending hs-CRP, the most useful comparison is your own prior results under similar conditions.
In-range (typical) hs-CRP
An in-range result usually means your inflammation level is not notably elevated for cardiovascular risk assessment. If you are making lifestyle changes, an in-range value can serve as a baseline to compare against future tests. Your clinician may still focus on other drivers of risk such as ApoB, blood pressure, or glucose control. If your number is near the upper end of the lab’s range, repeating it when you are well can help confirm it is stable.
High hs-CRP
A high hs-CRP means your body is signaling more inflammation than expected. For cardiovascular risk context, persistent elevation can act as a risk-enhancing factor, but a single high result is often caused by something temporary like a recent infection, injury, intense exercise, or a dental issue. Many clinicians confirm an elevated hs-CRP with a repeat test after you have been healthy for a couple of weeks. If it remains high, the next step is usually to look for common causes and to interpret it alongside other risk markers rather than treating the number in isolation.
Factors that influence hs-CRP
hs-CRP can rise with colds and flu, chronic inflammatory or autoimmune conditions, smoking, excess body fat (especially visceral fat), poor sleep, and untreated gum disease. It may also increase after hard workouts, injuries, or surgery, so timing your draw matters if you are using it for baseline risk. Some medications can lower hs-CRP indirectly by reducing inflammation or improving metabolic health, while others may affect it through changes in weight or immune activity. Because it is nonspecific, pairing hs-CRP with other labs and your symptom timeline is the safest way to interpret it.
What’s included
- Hs Crp
Frequently Asked Questions
What is a normal hs-CRP level?
“Normal” depends on the lab and the context, but hs-CRP is often interpreted in cardiovascular risk categories (lower, intermediate, higher) rather than a single cutoff. Your report will show the lab’s reference interval, and your clinician may also consider whether the value is stable on repeat testing when you are well.
Do I need to fast for an hs-CRP test?
Fasting is not usually required for hs-CRP. However, if you are getting hs-CRP alongside a lipid panel or other metabolic labs, you may be asked to fast depending on what is included in your order and your clinician’s preference.
How long should I wait to retest hs-CRP if it’s high?
If you were recently sick, injured, or had unusually intense exercise, many clinicians repeat hs-CRP after you have been back to your baseline health for about 2 weeks (sometimes longer after major illness or surgery). The goal is to see whether the elevation persists.
Can exercise raise hs-CRP?
Yes. A very hard workout, a new training block, or muscle injury can temporarily raise inflammatory markers, including hs-CRP. If you want a baseline value, avoid unusually intense exercise for a day or two beforehand and test when you feel recovered.
Is hs-CRP the same as CRP?
They measure the same protein, but the tests are optimized for different ranges. hs-CRP is designed to measure low levels relevant to cardiovascular risk assessment, while standard CRP is commonly used to evaluate more significant inflammation from infection or inflammatory disease activity.
What tests go well with hs-CRP for heart risk?
hs-CRP is often paired with lipid testing (including LDL-C and triglycerides) and, when available, ApoB to estimate atherogenic particle burden. Many people also check glucose-related markers (fasting glucose, HbA1c, sometimes fasting insulin) and blood pressure because inflammation, lipids, and metabolic health interact.
Can a high hs-CRP mean I have heart disease?
Not by itself. hs-CRP is nonspecific and can be elevated for many reasons unrelated to your arteries. A persistently elevated hs-CRP can add to your overall risk profile, but diagnosing heart disease typically requires a combination of history, exam, labs, and sometimes imaging or functional testing.