getting tired Typically, there are no symptoms of high cholesterol. This means that you may not know if your cholesterol levels are high. However, a simple blood test, called a lipid panel or cholesterol screening, can determine your cholesterol levels. Knowing your levels helps you know if you are at risk of Heart disease, heart attack, and stroke. Your health care provider will help you understand what your test results mean, what your levels should be, and how to control your level of cholesterol to reduce your health risks.