________________________________________________________________________
KEY POINTS
________________________________________________________________________
This blood test measures a kind of fat (lipid) called low-density lipoprotein (LDL) cholesterol. LDL, also called bad or cholesterol, is a type of blood fat that leads to fatty deposits that form in the arteries and make them narrower. Your child needs cholesterol to make hormones and to build and keep healthy cells. However, too much harmful blood fat can cause problems that increase your child’s risk for heart disease, heart attack, and stroke as an adult. Think of "L" for "lousy" cholesterol.
Your child’s body makes some cholesterol and gets the rest from foods such as meats, eggs, and milk products.
Tests measuring other types of cholesterol and fats are often done at the same time as the LDL test. Together, these lipid tests are often called a lipid panel. Some children and teens should have a lipid panel between the ages of 9 and 11 years and again between the ages of 17 and 21 years. Your child’s healthcare provider may order a lipid panel at a younger age or more often based on your child’s and your family’s risk factors.
The LDL test, as part of a lipid panel, helps your child’s healthcare provider check your child’s risk for heart disease or atherosclerosis. Atherosclerosis is a hardening, narrowing, or blockage of the arteries.
If you are working to improve your child’s cholesterol levels with healthy food choices, physical activity, or medicine, this test can help show how well treatment is working.
Having this test will take just a few minutes. A small amount of blood is taken from a vein in your child’s arm with a needle. The blood is collected in tubes and sent to a lab.
Ask your child’s healthcare provider how and when you will get your child’s test results.
Because LDL cholesterol increases your child’s risk for heart disease, lower numbers are better. Your child’s LDL usually should be below 110 mg/dL. Talk to your child’s healthcare provider about what your child’s LDL and other cholesterol target levels should be.
Some of the reasons your child’s LDL level may be high are:
Test results are only one part of a larger picture that takes into account your child’s medical history, physical exam, and current health. Sometimes a test needs to be repeated to check the first result. Talk to your child’s healthcare provider about the results and ask questions such as: