The Cholesterol – LDL Direct test is a blood test that measures the level of low-density lipoprotein (LDL) cholesterol in the blood. LDL cholesterol is often referred to as “bad” cholesterol because it can contribute to the buildup of plaque in the arteries and increase the risk of heart disease. The LDL Direct test is different from the traditional LDL cholesterol test, which estimates LDL cholesterol based on measurements of total cholesterol, HDL cholesterol, and triglycerides. The LDL Direct test provides a direct measurement of LDL cholesterol, which can be more accurate than the estimated LDL cholesterol calculation. The test is usually performed after a period of fasting, and the blood sample is sent to a laboratory for analysis. The results of the test are typically reported as a numerical value, which is compared to the laboratory’s reference range to determine if the level of LDL cholesterol in the blood is within a normal range or if further investigation is necessary. A healthcare provider may recommend lifestyle changes or medication to manage cholesterol levels based on the results of the test and other factors such as age, family history, and overall health.