A few questions help us personalize your report.
LDL peak size measures the diameter (in nanometers) of the most abundant LDL particle subclass in your blood. A peak size below 20.6 nm defines Pattern B — small, dense LDL — while larger sizes reflect the more benign Pattern A. Peak size is a continuous variable: as it decreases toward small dense LDL, cardiovascular risk rises in a graded fashion. This marker is particularly informative in people with normal LDL cholesterol who suspect metabolic risk based on their triglyceride or blood sugar levels.
Small LDL peak size below 20.5 nm indicates Pattern B with small, dense, atherogenic particles. Large LDL peak size above 21.2 nm indicates Pattern A with large, buoyant particles.
Optimal LDL peak size is above 21.2 nm. The Pattern A/B cutoff is approximately 20.5 nm. Peak size correlates inversely with triglycerides.