Cholesterol - LDL

The Cholesterol - LDL test is a blood test that measures the levels of low-density lipoprotein (LDL) in the body. This test is done to evaluate your cardiovascular health, especially when you have risk factors, such as obesity, diabetes, and high blood pressure. It is also done as part of a routine health checkup or a lipid profile.

Cholesterol is a waxy, fat-like substance found in all cells of the body. It is essential for the production of hormones and vitamin D and for digesting food. There are generally two types of cholesterol: low-density lipoproteins (LDL) or the "bad" cholesterol and high-density lipoproteins (HDL) or the “good” cholesterol. Although referred to as bad, LDL cholesterol is not essentially unhealthy. Your body needs it in an optimum amount for nerve protection, cell production, and hormone synthesis. However, excessive amounts may clog or block the blood vessels (plaque formation) and increase the risk of heart conditions, such as heart attack, stroke, and angina. 

The Cholesterol - LDL test helps determine LDL levels in the blood. High LDL cholesterol levels (hypercholesterolemia) generally show no symptoms in the early stages but may eventually lead to several cardiovascular complications. Whereas, low LDL cholesterol levels (hypocholesterolemia) are rare and are caused generally due to underlying health conditions like hyperthyroidism, liver disease, or malnutrition. This test does not require any special preparations. Usually, you do not have to stop your medications unless specifically advised by your doctor. 

Test result ranges are approximate and may differ slightly between different labs depending on the methodology and laboratory guidelines. Talk to your doctor about your specific test results. The results will help them evaluate your medical condition; make recommendations for diet, exercise, or medication; and formulate your overall treatment plan.