Apolipoprotein A-1 (Apo A-1)
The apolipoprotein A-1 (apo A-1) blood test is used to evaluate survival rate or risk factors for individuals with past heart attacks and peripheral vascular diseases. Apo A-1 recycles cholesterol from the tissues back to the liver for further processing. It keeps the arteries clear of plaque-forming cholesterol. A 12 to 14 hour fast is required for this blood test. However, drink plenty of water and take medications as prescribed.