Apolipoprotein A1
Apolipoprotein A1 (Apo A1) is the main protein component of high-density lipoprotein cholesterol (HDL) particles. Apo A1 plays a crucial role in the metabolism of lipids by helping to remove cholesterol from tissues and transport it to the liver for excretion.
Unlike standard HDL cholesterol, Apo A1 provides a more direct measure of the functional particles involved in cholesterol removal. It helps in understanding how well cholesterol is being managed in the body.
Test details
Sample type
Blood
Time of day
No specific time needed
Fasting required
No
Results timeframe
7 days
Preparation
No special preparation required
What's measured in this test
Apolipoprotein A1
Main protein in good cholesterol (HDL).
Common reasons for testing
- Family History of Heart Disease – Assesses inherited risk factors contributing to cardiovascular conditions.
- Monitoring Cholesterol-Lowering Therapy – Tracks the effectiveness of medications or lifestyle changes aimed at reducing cholesterol levels.
- Assessing Risk for Cardiovascular Diseases – Identifies lipid abnormalities that may increase the risk of heart disease or stroke.