Cholesterol screenings are medical tests that measure the levels of cholesterol in your blood. Cholesterol is a fatty substance that can build up in your arteries, potentially leading to heart disease and other health issues. These screenings typically involve a simple blood test, which can be done after fasting for several hours to ensure accurate results. The results of a cholesterol screening usually include measurements of LDL (low-density lipoprotein), often referred to as "bad" cholesterol, and HDL (high-density lipoprotein), known as "good" cholesterol. Regular screenings are recommended for adults, especially those with risk factors such as a family history of heart disease, obesity, or high blood pressure.