Lipoprotein(a) [Lp(a)] concentration

What Is Lipoprotein(a)?

Lipoprotein(a) is a unique lipoprotein particle that combines cholesterol with a protein called apolipoprotein(a). While it shares some traits with cholesterol, it behaves differently in the body and is associated with a higher risk of clotting and heart disease. This test specifically measures the mass concentration of Lp(a) in your bloodstream.

Why Is This Test Done?

Your healthcare provider may order this test if you have a family history of heart disease, stroke, or blood clots, or if you have conditions like high cholesterol or atherosclerosis. It may also be used to monitor risk in people with known cardiovascular issues or those undergoing treatments to manage cholesterol levels.

How Is the Test Performed?

A blood sample is drawn from a vein, usually in your arm. The sample is then sent to a lab for analysis using a specialized immunoassay method to measure the exact amount of lipoprotein(a) in your blood.

What Does the Test Result Mean?

Higher levels of Lp(a) may indicate an increased risk of cardiovascular events like heart attacks or strokes. While there’s no single reference range for Lp(a), very high levels are often considered a risk factor. Your results will be discussed with your healthcare provider to help guide further evaluation or treatment options.