LDL (Direct)

Low density lipoprotein cholesterol (LDL-C) values are typically used either to assess a person's risk for heart disease or to follow response to therapy to lower cholesterol. A standard lipid profile consists of measured values for total cholesterol, high-density lipoprotein cholesterol (HDL-C), and triglycerides. Using a mathematical equation, the amount of cholesterol present in low-density lipoprotein can be determined from the three measured values. The calculated value for LDL-C is typically reported as part of the lipid profile. When triglycerides are high, the equation is no longer valid. In this situation, the only way to accurately determine LDL-C is to measure it directly. 

Preparation: You should fast 12 hours prior to this test, unless you are diabetic or pregnant. Fasting means abstaining from food and any non-water drinks. Do drink plenty of water while fasting and continue with any prescribed medications.

Please be advised, that our services are strictly self pay and are not eligible for submission as a claim to your health insurance provider. However, you can submit the receipt for reimbursement to many Flexible Spending and Health Savings Accounts for reimbursement.

Quest Test Code  8293


These are not intended as diagnostic comments, but only to give you sufficient information for further discussion with your physician. It is important that you promptly consult your physician regarding any abnormal findings.

For more Information on any of your lab testing

  • Consult your physician
  • Review the information on the independent, non-profit web site: www.labtestsonline.org

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