Test Details & Preparation
- Direct LDL Cholesterol test is done to help determine your risk of developing heart disease and to monitor lipid-lowering lifestyle changes and drug therapies to accurately determine your low-density lipoprotein cholesterol (LDL-C) level when you are not fasting.
- Direct LDL Cholesterol test is performed as a follow-up to a lipid profile if your triglycerides are significantly elevated at regular intervals to monitor efforts to lower LDL levels.
- A blood sample drawn from a vein in your arm for a Direct LDL Cholesterol test.
- No special preparation is needed for a Direct LDL Cholesterol test however, your doctor may request that you fast.
- Elevated levels of LDL, as measured with the direct LDL-C test, indicate a greater risk of developing heart disease. Decreasing levels show a response to lipid-lowering lifestyle changes or drug therapies and indicate a decreased risk of heart disease.
- Low levels of LDL are not generally a concern and are not monitored. They may be seen in people with an inherited lipoprotein deficiency and in those with hyperthyroidism, infection, and inflammation.
Your Low-density lipoprotein (LDL) cholesterol level should be less than 130 mg/dL (3.4 mmol/L). Desirable levels are under 100 mg/dL (2.6 mmol/L), especially if you have diabetes or a history of heart attacks, heart stents, heart bypass surgery, or other heart or vascular conditions.