High-density lipoprotein cholesterol
An HDL cholesterol test measures the amount of high-density lipoprotein ("good") cholesterol in your blood. High HDL levels may lower your risk for heart disease.
You may have this test as part of a routine screening to find out your risk for heart disease.
An HDL test is often done as part of a comprehensive lipid panel to get a complete picture of your cholesterol and blood fat levels. Low-density lipoprotein (LDL) cholesterol, triglycerides, and very-low density lipoproteins are among the other lipids your healthcare provider may want to measure.
Many things may affect your lab test results. These include the method each lab uses to do the test. Even if your test results are different from the normal value, you may not have a problem. To learn what the results mean for you, talk with your healthcare provider.
The normal ranges for HDL cholesterol are:
45 to 70 milligrams per deciliter (mg/dL) for men
50 to 90 mg/dL for women
If the test shows that your HDL levels are lower than normal, this may mean you have a higher risk of developing heart disease.
If your HDL level is higher than the normal range, this is good news: HDL helps rid your system of LDL. It helps protect against heart problems such as atherosclerosis, or hardening of the arteries. Researchers think that a level of 60 mg/dL or higher may protect against heart disease.
The test requires a blood sample, which is drawn through a needle from a vein in your arm.
Taking a blood sample with a needle carries risks that include bleeding, infection, bruising, or feeling dizzy. When the needle pricks your arm, you may feel a slight stinging sensation or pain. Afterward, the site may be slightly sore.
Having another health condition such as diabetes, or taking certain medicines can affect the results of an HDL test.
Ask your healthcare provider how you should prepare for this test. You don't usually need to do anything before an HDL test, but if you're having a complete lipid panel, you will probably have to fast and not exercise for 12 hours before having the test.
Be sure your provider knows about all medicines, herbs, vitamins, and supplements you are taking. This includes medicines that don't need a prescription and any illicit drugs you may use.