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Cholesterol Test Instructions

A lipid panel or profile, also known as a cholesterol test, is a blood test that measures the total amount of cholesterol in your blood as well as the LDL and HDL cholesterol and triglyceride levels. Because cholesterol levels can be affected by a variety of things, such as medications and food, it is important to follow certain guidelines before testing in order to ensure the most accurate results.

  1. Scheduling Your Test

    • Cholesterol tests are usually best when performed in the morning, because they require a fasting period prior to testing. Some cholesterol tests can be performed without previous fasting, but these may not provide a comprehensive picture of your cholesterol levels. A non-fasting test typically measures only total cholesterol and high-density lipoprotein levels, according to labtestsonline.org. In the week before your test, refrain from eating foods that are high in cholesterol, such as red meat, eggs and high-fat foods.

    The Day Before

    • Do not drink alcohol 48 hours before your test time, as alcohol can increase triglyceride levels. For an accurate test, fast for 9 to 12 hours beforehand, according to the Mayo Clinic. The only liquid you can drink is water; coffee, tea and soda are prohibited.

    Special Requirements

    • Medications, including birth control pills, anabolic steroids and beta blockers, can affect cholesterol levels. Tell your physician of any medications you are currently taking, because you might need to switch to an alternate plan of treatment in the days leading up to your test.

      If you are feeling sick on test day, reschedule; cholesterol can be lower as a result of illness. For more serious illnesses, such as pneumonia, mononucleosis or the flu, wait at least six weeks after you are well before you have a cholesterol test.

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