Cardiac Risk Markers

Apolipoprotein A-I (apo A-I) is a protein that plays an important role in the transportation and metabolism of lipids and is the main protein component in high-density lipoprotein. Apo A-I is ordered in someone who has a personal or family history of abnormal lipid levels and/or premature cardiovascular disease. It may be ordered when your doctor is trying to determine the cause of a person's high cholesterol.

High sensitive CRP: High sensitive C reactive protein is a test that measures the amount of C reactive protein in the blood. The level of this marker is elevated in cases of inflammation in the body. This test can evaluate your risk of heart diseases such as coronary artery disease.

Apolipoprotein B/ Apolipoprotein A1 Ratio helps in evaluating your risk of developing cardiovascular disease (CVD); It is also used to monitor treatment for high cholesterol. This test is not widely used for a screening test but may be ordered if a person has a family history of heart disease and/or high cholesterol and triglycerides (hyperlipidemia).  

Lipoprotein B is a marker that has been proven to indicate a person's chance of having a cardiovascular event such as a heart attack or stroke. 

Apolipoprotein B is ordered along with an apo A-I or other lipid tests, when a healthcare practitioner is trying to evaluate someone's risk of developing CVD and when a person has a personal or family history of heart disease and/or abnormal lipid levels, especially when the person has significantly elevated triglyceride levels.