This test measures the level of apolipoprotein B, a key protein found in LDL and other atherogenic lipoproteins that carry cholesterol through the bloodstream. ApoB provides a more precise assessment of cardiovascular risk than standard cholesterol tests by estimating the number of potentially harmful lipid particles. Monitoring ApoB can help evaluate heart health and lipid metabolism balance.

This lab is intended to be 8-to-12 hour calorie-fasted, but please ensure adequate hydration.

A provider will approve your labs, and your Lab Requisition Form will be emailed to you within 24 business hours. Labcorp will also have this on file. Please bring a valid photo ID to your nearest Labcorp location. Results will be securely emailed as soon as they are available.