LDL Particle Number
LDL particle number (LDL-P) measures the actual count of LDL particles in the blood, which may be a better predictor of cardiovascular risk than LDL cholesterol concentration alone.
Category: lipids
Also known as: ldl particle number, ldl-p, ldlp, ldl particles, ldl particle count, broj ldl čestica
Reference range: 0–1000 nmol/L (Source: ABIM)
Standard unit: nmol/L
High values may indicate
High LDL particle number may indicate increased risk of atherosclerosis and cardiovascular disease, even when LDL cholesterol levels appear normal.
Low values may indicate
Low LDL particle number is generally favorable and associated with reduced cardiovascular risk.
Frequently asked questions
- What is a normal LDL Particle Number level?
- A typical reference range for LDL Particle Number is 0–1000 nmol/L (source: ABIM). Reference ranges vary by laboratory, age, and sex, so always compare against the range on your own lab report.
- What units is LDL Particle Number measured in?
- LDL Particle Number is most commonly reported in nmol/L. Labs in different countries may use other units — you can convert between them with BloodId's blood test unit converter.
- Where do LDL Particle Number reference ranges come from?
- BloodId uses ABIM standard reference ranges and educational information from MedlinePlus (see our methodology). Reference ranges still vary by lab, age, and sex, so always compare against your own report.
- Can I track LDL Particle Number over time?
- Yes. Upload results from any lab and BloodId charts your LDL Particle Number over time against its reference range, so you can see whether the trend is rising, falling, or stable.
Related biomarkers
Source: MedlinePlus, U.S. National Library of Medicine
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