VLDL Particle Size levels: what's normal, high and low
The average diameter of your VLDL particles; larger VLDL reflects a higher triglyceride load.
Medically reviewed by Youmna DiStefano, MD · Last reviewed October 2026
The short answer
VLDL Particle Size is measured with a standard blood draw; no fasting is needed. TestWell offers panels that include VLDL Particle Size, drawn at Quest or Labcorp. An out-of-range result is a prompt to look closer, not a diagnosis.
Testing for VLDL Particle Size
This marker is reported as part of a panel rather than as a standalone test. Browse the panels that include it.
Browse tests- Units
- nm
- Sample
- Blood
- Fasting
- Not required
- Results
- 1–3 business days
- Labs
- Quest or Labcorp
VLDL Particle Size Reference Range
These are the typical adult reference ranges used by major US labs. Your report will include the specific range used by the lab that processed your sample.
| Population | Range |
|---|
Reference ranges are educational. Always interpret your result with the specific range printed on your lab report and discuss anything outside the range with a clinician.
Have a result in hand? analyze it with your AI assistant using these reviewed ranges, or run it through our explainer. Tools: look up another marker's range · convert lab units
Related Heart Health biomarkers
Markers commonly tested alongside VLDL Particle Size.
Frequently asked
Do I need a doctor's order to test my vldl particle size?
No. TestWell's licensed physician network reviews and approves your order — usually within minutes. You can place an order online without an in-person visit or a referral from your own doctor.
How long does it take to get VLDL Particle Size results?
Most VLDL Particle Size results are available in 1–3 business days after your specimen arrives at the lab. You'll get an email the moment your results are ready, with everything viewable in your TestWell portal.
Where can I order a VLDL Particle Size test?
TestWell offers panels that include VLDL Particle Size alongside related markers. Browse our test catalog to find the panel that fits your goals.
Do I need to fast before my VLDL Particle Size test?
Fasting is not required for the VLDL Particle Size test. You can have your blood drawn any time of day.
Which lab will process my VLDL Particle Size test?
Your test will be processed by Quest Diagnostics, Labcorp, or BioReference depending on which is closest to you and which lab carries the test. All three are CLIA-certified and trusted by hospitals nationwide. You'll choose your lab during checkout from 4,000+ locations.
Ready to test your vldl particle size?
Order in two minutes, get physician-approved, and visit a lab the same day.