Quick Facts
- Sample: Blood (serum)
- Fasting: 12-14 hours required
- Turn-around: 7–8 business days. May take longer based on weather, holiday, or lab delays.
Benefits
- Detect cardiovascular risk earlier with advanced lipoprotein particle analysis beyond standard cholesterol testing.
- Gain deeper insight into heart health by measuring LDL and HDL particle size and number using NMR technology.
- Monitor effectiveness of cholesterol-lowering medications or lifestyle changes with precise lipid tracking.
- Identify hidden risk even when traditional cholesterol levels appear normal.
- Support personalized prevention strategies with detailed triglyceride and HDL cholesterol data.
Who Is This Test For?
- Individuals with borderline or abnormal cholesterol levels
- People with family history of heart disease or stroke
- Patients currently on lipid-lowering therapy who need monitoring
- Individuals with metabolic risk factors like obesity, diabetes, or high blood pressure
- Health-conscious adults seeking advanced cardiovascular screening
- Anyone with normal cholesterol but suspected elevated cardiovascular risk
How It Works – Just 3 Steps
- Order online and prepare — Fast for 12-14 hours before your test; water is allowed.
- Visit a lab — Blood drawn via venipuncture at a certified lab.
- Receive results — Access your results online within 7–8 days to review your cardiovascular risk markers.
FAQ
What does this test measure? This test combines an advanced NMR lipoprotein analysis with a lipid panel, measuring LDL and HDL particle number and size, triglycerides, and HDL cholesterol to assess cardiovascular risk.
How is this different from a standard lipid panel? A standard lipid panel measures cholesterol levels, while this test uses NMR technology to analyze the number and size of lipoprotein particles, providing a more detailed risk assessment.
Why are lipoprotein particles important? Particle number and size can better predict cardiovascular disease risk than cholesterol levels alone, especially in people with normal lipid results.
Do I need a doctor’s order? No physician visit required—order directly online and get tested at your convenience with confidential results.
How should I prepare for accurate results? Fast for 12-14 hours before your blood draw and follow your usual diet in the weeks leading up to testing for the most accurate baseline.
How often should I get tested? Most adults should test every 4–6 years, but those with abnormal results or cardiovascular risk factors may need more frequent monitoring as advised by a healthcare provider.
More Details
What is the purpose of this test?
The Lipoprotein Fractionation, NMR with Lipid Panel (Triglycerides/HDL-C) Blood Test provides an advanced evaluation of cardiovascular risk by analyzing both traditional cholesterol markers and detailed lipoprotein particle characteristics. Using nuclear magnetic resonance (NMR) technology, this test measures the number and size of LDL and HDL particles—key indicators that can reveal hidden heart disease risk even when standard cholesterol levels appear normal.
In addition to particle analysis, the included lipid panel evaluates triglycerides and HDL cholesterol, which are essential markers of metabolic and cardiovascular health. This combined approach allows for a more accurate assessment of atherosclerosis risk and helps guide treatment decisions, including lifestyle changes or lipid-lowering therapy. The test is especially valuable for individuals with intermediate or high cardiovascular risk or those monitoring response to treatment.
Who would benefit from this test?
This test is ideal for individuals who need a more detailed assessment of their cardiovascular health beyond a standard lipid panel. People with a personal or family history of heart disease, stroke, or metabolic conditions such as diabetes or obesity can benefit from early detection of abnormal lipoprotein patterns.
It is also useful for patients already undergoing cholesterol-lowering treatment, as it helps evaluate how well medications or lifestyle changes are improving lipid particle profiles. Individuals with normal cholesterol levels but ongoing risk factors—such as high blood pressure, smoking, or insulin resistance—may uncover hidden risks through advanced particle analysis.
When should I order this test?
Consider ordering this test if you have previously had abnormal cholesterol results or if you fall into an intermediate or high cardiovascular risk category. It is also appropriate when starting or adjusting lipid-lowering therapy to track how your body responds to treatment.
Individuals with risk factors such as obesity, diabetes, high blood pressure, or a strong family history of heart disease should consider advanced lipid testing for more precise risk evaluation. Even if your standard lipid panel is normal, this test can provide additional insight if there is concern about underlying cardiovascular risk.
How do I interpret the results?
Your results will include both traditional lipid values and advanced lipoprotein particle data. These results are compared to established reference ranges to determine your cardiovascular risk level.
LDL particle number (LDL-P)
- What it means: Higher particle numbers are associated with increased risk of plaque buildup and heart disease
- Typical action: Improve diet, increase physical activity, and consider medication if recommended
HDL particle number (HDL-P)
- What it means: Higher levels are generally protective and support cardiovascular health
- Typical action: Maintain healthy lifestyle habits such as exercise and balanced nutrition
Triglycerides
- What it means: Elevated levels may indicate metabolic dysfunction or increased heart disease risk
- Typical action: Reduce sugar and refined carbohydrates; increase physical activity
HDL cholesterol (HDL-C)
- What it means: Low levels may reduce protection against heart disease
- Typical action: Focus on exercise, healthy fats, and smoking cessation if applicable
Advanced lipoprotein testing can uncover cardiovascular risk not detected by standard cholesterol testing, making it a valuable tool for early prevention and personalized care.
Disclaimer: Reference ranges may vary by laboratory. Listed ranges are general guidelines and may differ from those used by the performing lab. Always consult your healthcare provider for interpretation.
Pre-test preparation
Fast for at least 12-14 hours before your blood draw—water is permitted, but avoid all food and beverages. Continue your usual diet in the weeks leading up to testing to ensure results reflect your typical health status.
Stay well-hydrated to make blood collection easier. Avoid alcohol and heavy meals the day before testing, as they can temporarily affect triglyceride levels. Inform your healthcare provider about any medications or supplements you are taking, as some may influence lipid levels.
How often should I get tested?
- Routine screening: Every 4–6 years for healthy adults
- Elevated cardiovascular risk: Every 6–12 months or as recommended
- Monitoring therapy: As directed to evaluate treatment effectiveness
- Abnormal prior results: Periodic follow-up testing to track improvement
- Preventive health tracking: Annually for high-risk individuals
Why early detection matters
Cardiovascular disease often develops silently over many years before symptoms appear. Advanced lipoprotein testing can detect subtle abnormalities in particle number and size that signal early plaque buildup and increased risk of heart attack or stroke. Identifying these risks early allows for timely lifestyle changes or medical treatment to prevent disease progression.
Even individuals with normal cholesterol levels may have elevated LDL particle numbers, placing them at higher risk than standard tests suggest. By uncovering these hidden risks, this test supports proactive, personalized prevention strategies that protect long-term heart health and reduce the likelihood of serious cardiovascular events.
Related tests you may consider
Comprehensive Metabolic Panel— Evaluates blood sugar, kidney, and liver function to complement cardiovascular risk assessment.
High-Sensitivity C-Reactive Protein (hs-CRP) — Measures inflammation associated with increased heart disease risk.
Apolipoprotein B (ApoB) — Provides additional insight into atherogenic particle burden and cardiovascular risk.
