Description
Why It’s Done:
The Lipoprotein (A), Lp(A) Test is typically performed to:
• Assess cardiovascular risk: Elevated Lp(a) levels are associated with an increased risk of heart disease and stroke, particularly when other risk factors (such as high cholesterol, smoking, and hypertension) are also present.
• Identify genetic predisposition: Lp(a) levels are largely determined by genetics, so measuring Lp(a) can help identify individuals who have a genetic predisposition to cardiovascular diseases, even if their standard cholesterol levels (LDL, HDL) appear normal.
• Risk assessment in individuals with a family history of heart disease: If there is a family history of premature cardiovascular disease, especially in individuals under 55, the Lp(a) test may help identify additional risk factors.
• Evaluate unexplained cardiovascular events: If a person experiences a heart attack, stroke, or other cardiovascular events at a young age or without typical risk factors, the Lp(a) test may help determine if elevated Lp(a) played a role.
• Monitor individuals with known cardiovascular disease: For people already diagnosed with heart disease or other vascular conditions, the test may help refine treatment strategies.
Preparation:
• Fasting: It is generally recommended to fast for 9–12 hours before the test for accurate results. However, some laboratories may not require fasting specifically for Lp(a) testing, so it’s best to follow your healthcare provider’s instructions.
• A blood sample will be drawn from a vein in your arm.
• Inform your healthcare provider about any medications, supplements, or medical conditions you have, as these may influence your test results. Some medications, such as niacin and certain lipid-lowering drugs, may affect Lp(a) levels, although Lp(a) is largely genetically determined.
• Family history of cardiovascular disease: Let your healthcare provider know if you have a family history of early heart disease or stroke, as this information may help interpret the test results.
