The Apolipoprotein B (Apo B) test measures the level of Apo B, a protein found on atherogenic lipoproteins such as LDL (“bad cholesterol”), VLDL, and IDL. Because each of these particles contains one Apo B molecule, this test reflects the total number of cholesterol-carrying particles that can contribute to plaque buildup in the arteries.
Apo B testing provides a more precise assessment of cardiovascular risk than standard cholesterol measurements alone and is often used to evaluate heart disease risk, guide treatment decisions, and monitor response to lipid-lowering therapy.
Apolipoprotein B (Apo-B)
Fasting Required
The Apolipoprotein B (Apo B) test measures the level of Apo B, a protein found on atherogenic lipoproteins such as LDL (“bad cholesterol”), VLDL, and IDL. Because each of these particles contains one Apo B molecule, this test reflects the total number of cholesterol-carrying particles that can contribute to plaque buildup in the arteries.
Apo B testing provides a more precise assessment of cardiovascular risk than standard cholesterol measurements alone and is often used to evaluate heart disease risk, guide treatment decisions, and monitor response to lipid-lowering therapy.