LDL Particle Size or Number

LDL, Low-Density Lipoprotein, is a type of protein carrying cholesterol. And, an LDL particle test helps to evaluate the risk of developing cardiovascular disease.


Usually, an LDL particle test reflects the number, size, density, and/or electrical charge of LDL. However, as hospitals take various testing methods, the results and the reference ranges vary.

Results Meanings:

  • In general, the lower the LDL level, the better.
  • If the person has much small, dense LDL (sdLDL) and increased LDL-P levels, it suggests a high risk of developing cardiovascular disease.
  • On the other hand, a large LDL with a low LDL-P level means no additional risk of developing cardiovascular disease.


Keywords: LDL Particle Size or Number; LDL Particle Testing (LDL-P); LDL Subclasses; LDL Subfractions; Low-Density Lipoprotein Subfraction Profile; NMR Particle Test; sdLDL

* The Content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.