InstalabBoston Heart CVMap & Metabolics
Should you take a Boston Heart CVMap & Metabolics test?
This test is most useful if any of these apply to you.
24 biomarkers included
- Lipids14
- LDL Cholesterol (Direct)Measures the cholesterol inside LDL particles directly, rather than calculating it from your other lipid values as many labs do.Why it mattersDirect values run somewhat higher than calculated LDL, so compare results measured the same way over time.
- sd-LDL CholesterolMeasures the cholesterol in the smallest, densest LDL particles, the ones most prone to building plaque. It can be high even when standard LDL looks ordinary.Why it mattersHigh triglycerides help these particles form, and a high sdLDL-C is often associated with metabolic syndrome.
- HDL CholesterolMeasures the cholesterol carried in high-density lipoproteins (HDL), particles whose higher levels are generally associated with lower cardiovascular risk.Why it mattersLow HDL cholesterol is a characteristic of insulin resistance, while very high levels have been tied to more risk in some groups.
- TriglyceridesMeasures triglycerides, the fats your body stores in fat tissue or burns for energy.Why it mattersHigh triglycerides raise cardiovascular risk by altering lipoprotein metabolism, helping create small dense LDL and contributing to low levels of large HDL particles.
- Total CholesterolMeasures all the cholesterol in your blood, summed across every cholesterol-carrying particle, from LDL and HDL to Lp(a) and triglyceride-rich particles.Why it mattersRead alongside LDL and HDL cholesterol, it helps define your cardiovascular risk rather than standing alone.
- CampesterolA plant sterol your body cannot make, so the amount in your blood reflects how much your gut absorbs.Why it mattersHigh campesterol, together with high beta-sitosterol, points to cholesterol over-absorption.
- DesmosterolA building block your body makes on the way to cholesterol, and one of the two markers of how much cholesterol you produce.Why it mattersHigh desmosterol together with high lathosterol points to cholesterol overproduction, which is associated with higher LDL cholesterol.
- LathosterolThe other production marker, a stepping stone your liver makes while building cholesterol.Why it mattersA high lathosterol level suggests your body is making more of its own cholesterol.
- Beta-SitosterolThe second absorption marker, a plant sterol that reaches your blood only from food, through your gut.Why it mattersHigh beta-sitosterol is associated with higher LDL cholesterol and points to over-absorption from the gut.
- Beta-Sitosterol (Normalized)Beta-sitosterol expressed relative to your total cholesterol, which removes the distortion that different cholesterol levels create and gives a cleaner read on absorption.Why it mattersA high normalized beta-sitosterol signals an absorption-dominant pattern that can be compared across people with different cholesterol levels.
- Campesterol (Normalized)Campesterol measured relative to your total cholesterol, so your absorption reading is not skewed by how much cholesterol-carrying lipoprotein you happen to have.Why it mattersHigh normalized campesterol, together with high normalized beta-sitosterol, points to cholesterol over-absorption.
- Desmosterol (Normalized)Desmosterol divided by your total cholesterol, a ratio that cancels out differences in overall cholesterol and isolates the production signal.Why it mattersNormalized desmosterol is most informative read alongside campesterol and beta-sitosterol, not in isolation.
- Lathosterol (Normalized)Lathosterol adjusted for your total cholesterol, giving a fairer read on how much cholesterol your body makes on its own.Why it mattersA high normalized lathosterol, especially with a high normalized desmosterol, marks an over-producer pattern.
- Cholesterol Balance ScoreA single ratio of the production markers to the absorption markers that places you in one of three groups: over-absorber, balanced, or over-producer.Why it mattersBelow 0.5 points to over-absorption, 0.5 to 1.1 is balanced, and above 1.1 points to overproduction.
- Inflammation2
- Lp-PLA₂ ActivityMeasures the activity of an enzyme made by immune cells called monocytes and macrophages, reflecting an active inflammatory process inside the artery wall.Why it mattersHigher activity is associated with soft, actively growing plaque and predicts risk independent of LDL cholesterol.
- hs-CRPMeasures C-reactive protein, an inflammation protein made by the liver, at the very low levels that can accompany inflammation in blood vessels or the whole body.Why it mattersA raised level is linked to atherosclerosis once other causes of inflammation, such as a recent infection, are ruled out.
- Glucose Regulation5
- HbA1cMeasures the glucose attached to hemoglobin in your red blood cells, reflecting your average blood sugar over the last two to three months.Why it mattersUnlike a single glucose reading, it shows where your blood sugar has been running and helps flag diabetes risk.
- C-PeptideA small protein your pancreas releases along with insulin, used to measure how much insulin your body is producing.Why it mattersIt stays an accurate measure of your own insulin production even if you take insulin treatment.
- HOMA-IRA calculation from your fasting glucose and fasting insulin that estimates insulin resistance, or how hard your body must work to keep blood sugar in range.Why it mattersIt can show insulin resistance building while fasting glucose still looks normal.
- GlucoseMeasures the sugar in your blood after your fast. Glucose is your body's main short-term fuel, coming from food and from your liver.Why it mattersFasting glucose in the diabetes range is associated with a significantly higher risk of cardiovascular disease, stroke, and kidney failure.
- InsulinMeasures fasting insulin, the hormone your pancreas makes to move glucose into cells for use and storage and keep blood sugar in range.Why it mattersHigh fasting insulin can mean your body is working overtime to control glucose, and it can raise heart disease and diabetes risk.
- Lipoproteins3
- ApoBMeasures the number of plaque-building particles in your blood. Each one carries exactly one apoB protein, so the level reflects particle number rather than a cholesterol amount.Why it mattersLDL makes up about 90% of these particles, so apoB also serves as a stand-in for LDL particle number.
- Apolipoprotein A1Gives HDL particles their structure and activates enzymes that attach a fatty acid to cholesterol so it can move into the HDL core.Why it mattersA low apoA-I level is associated with higher cardiovascular risk, giving a protein-based view of the HDL side of your lipids.
- Lipoprotein(a)An LDL-like particle with an extra protein, apolipoprotein(a), attached to its apoB. Its level is set mainly by the genes you inherit.Why it mattersA high level is an independent, predominantly inherited, and causal risk factor for cardiovascular disease, according to the American Heart Association.
About Boston Heart CVMap & Metabolics
A standard cholesterol test tells you how much cholesterol is in your blood. It does not show how many particles carry that cholesterol, check for inflammation linked to the arteries, measure Lp(a), a largely inherited particle, or reveal how hard your body is working to control blood sugar.
This panel adds those missing pieces to a standard lipid panel, all from a single blood draw. Read together, the results map where your risk sits today and give you a baseline to track as you make changes.
What This Panel Reveals
The results fall into four groups: cholesterol and the particles that carry it, inflammation, blood sugar and insulin, and a cholesterol balance reading that shows whether your body leans toward making or absorbing cholesterol.
Cholesterol and the Particles That Carry It
Total cholesterol, HDL cholesterol, and triglycerides sketch the outline, and LDL cholesterol is measured directly rather than estimated. Every particle that can get trapped in an artery wall and build plaque carries exactly one apolipoprotein B (apoB) protein, so apoB is a direct measure of how many of these particles you have. LDL makes up about 90% of these particles, and an expert working group stated that apoB measures LDL particle number better than LDL cholesterol does.
Small dense LDL cholesterol (sdLDL-C) is the cholesterol carried in the smallest, densest LDL particles, the ones most prone to building plaque. High triglycerides help these particles form. In the Multi-Ethnic Study of Atherosclerosis, high sdLDL-C identified coronary heart disease risk that standard lipid measures missed, though only in people without diabetes or raised fasting glucose.
Apolipoprotein A-I (apoA-I) gives HDL particles their structure and activates enzymes that attach a fatty acid to cholesterol so it can move into the HDL core. A low level is associated with higher cardiovascular risk. Lipoprotein(a), or Lp(a), is an LDL-like particle with an extra protein, apolipoprotein(a), attached. The American Heart Association describes high Lp(a) as an independent and causal risk factor, with most of the difference between people set by genes.
Inflammation
High-sensitivity C-reactive protein (hs-CRP) is an inflammation protein made by the liver, measured at the very low levels that may be seen with inflammation in blood vessels or elsewhere in the body. Lipoprotein-associated phospholipase A₂ (Lp-PLA₂) is more specific to the arteries. This enzyme, made by immune cells called monocytes and macrophages, reflects active inflammation in the vessel wall. Higher activity is associated with soft, actively growing plaque rather than stable, calcified plaque, and it predicts risk independent of LDL cholesterol.
Blood Sugar and Insulin
HbA1c measures the glucose attached to hemoglobin in red blood cells, which reflects your average blood sugar over the last two to three months. Fasting glucose is a snapshot of one moment. Insulin is the hormone your pancreas makes to move glucose into cells, and C-peptide is released alongside it by the pancreas's insulin-making beta cells. Together they show how hard your body is working to keep glucose in range. C-peptide stays an accurate measure of your own insulin production even if you take insulin.
Fasting glucose and insulin are combined into HOMA-IR, a standard estimate of insulin resistance from one fasting sample. When cells resist insulin, the beta cells can work much harder to hold glucose steady. Over time they can become progressively impaired, potentially leading to prediabetes and then type 2 diabetes. In a large study of postmenopausal women whose fasting glucose was still below the diabetes range, HOMA-IR was more strongly linked to new diabetes than glucose or insulin alone.
How Your Body Makes and Absorbs Cholesterol
This part of the panel measures four sterols, molecules closely related to cholesterol. Lathosterol and desmosterol are building blocks your body makes on the way to cholesterol, so they mark production. Campesterol and beta-sitosterol are plant sterols that come only from food, so they mark absorption: their levels in your blood reflect how much your gut absorbs. Each appears twice, as an absolute amount and normalized to your total cholesterol. The Cholesterol Balance Score divides production by absorption: below 0.5 points to an over-absorber, 0.5 to 1.1 is balanced, and above 1.1 points to an over-producer.
How to Read Your Results Together
Many of these markers move together, so they are most useful read as a set. High triglycerides help form small dense LDL and contribute to low levels of large HDL particles. Low HDL cholesterol is a characteristic of insulin resistance, so your lipids can hint at how your body is handling insulin.
| Pattern | What It May Suggest |
|---|---|
| Normal LDL cholesterol but high apoB or sdLDL-C | More, or denser, plaque-building particles than the cholesterol number alone suggests |
| High triglycerides, low HDL cholesterol, and high insulin or HOMA-IR | A pattern associated with insulin resistance, which can show up before glucose or HbA1c look abnormal |
| Cholesterol Balance Score above 1.1 or below 0.5 | Your body leans toward overproducing (above 1.1) or over-absorbing (below 0.5) cholesterol, which can guide how a clinician approaches lowering LDL |
| Normal standard lipids but high Lp(a), hs-CRP, or Lp-PLA₂ | Inherited or inflammatory risk that a routine cholesterol panel does not measure. A high hs-CRP counts here only once a recent illness or injury is ruled out. |
What to Do with Your Results
An out-of-range result is a prompt for a conversation with your clinician. The panel is designed to help guide treatment decisions, and lifestyle change is the cornerstone of lowering heart disease and diabetes risk. A cardiologist, lipid specialist, or primary care clinician can weigh these results alongside your blood pressure and family history, and can use the cholesterol production and absorption markers to choose an LDL-lowering approach that fits how your body handles cholesterol.
To see whether a change is working, repeat the panel after a shift in diet, activity, or treatment, on a schedule your clinician sets. Your hs-CRP may also help show how well you are responding to lifestyle change and statin treatment. In the JUPITER statin trial, people taking the statin who reached the trial's cutoffs for both LDL cholesterol and hs-CRP had a larger drop in cardiovascular events than those who reached one or neither. Lp(a), by contrast, is largely inherited and tends to stay stable.
When Results Can Be Misleading
- Fasting. The panel calls for an 8 hour fast with water only, since a recent meal can raise triglycerides and glucose for hours.
- Biotin. High doses of biotin, over 5 mg a day, can interfere with the insulin and C-peptide results, and the lab assumes you have taken no biotin supplements for at least 3 days before the draw.
- Recent illness. Infection or injury can raise hs-CRP, so a high value is linked to atherosclerosis only once other causes are ruled out.
- Medications. Statins can lower the production markers and raise the absorption markers as the body compensates by absorbing more cholesterol. If you take insulin, C-peptide is the better read on your own insulin production.
- Lab method. Lp(a) tests are not yet standardized across labs, and direct LDL runs somewhat higher than calculated LDL, so compare results from the same lab.