One number rarely tells the whole story.

This section explains what different biomarkers can show, what may influence the results, and which questions are useful to bring to your own appointment.

How to use this library

A laboratory reference interval is not automatically a treatment target. Age, family history, symptoms, medications, related conditions, and overall risk all affect interpretation.

The core principle

Tests help answer clinical questions. They do not replace a medical history, physical examination, or professional judgment.

LDL cholesterol, non-HDL cholesterol, and ApoB

Learn what each marker represents and why the results may be discordant.

Lipoprotein(a)

A mostly inherited factor that can modify cardiovascular risk.

Blood glucose, A1C, and insulin

A point-in-time measurement, a roughly three-month average, and a regulatory hormone.