A cholesterol test is an important way to check your health. High cholesterol levels often are a key risk factor for a common type of heart disease called coronary artery disease. Coronary artery disease can lead to conditions such as heart attack and stroke. High cholesterol puts you at risk of heart disease. A cholesterol levels blood test checks your LDL, HDL, and triglyceride levels to help determine your risk. Why are my cholesterol numbers important? Your cholesterol levels are important because they help you know your risk for heart disease. Cholesterol is a type of lipid (fat) that helps your body perform many important functions. But too much cholesterol in your blood is harmful. It can enter your artery wall, damage its integrity and lead to atherosclerotic plaque (hardened deposits) forming. What is a Cholesterol - Serum Test ? A Cholesterol - Serum Test , commonly referred to as a cholesterol test or cholesterol profile test , measures the levels of different types of cholesterol and fats in your blood. Cholesterol is a waxy, fat-like substance essential for various bodily functions, including the production of hormones and building cell membranes. However, having too much cholesterol in your blood can increase your risk of cardiovascular diseases, such as heart disease and stroke ...