HDL cholesterol test
What is being analysed in this test?
HDL cholesterol, or high-density lipoprotein cholesterol, is a type of cholesterol that is often referred to as "good" cholesterol. It is analysed to assess the levels of this beneficial lipid in the bloodstream.
What does the result mean?
The result of HDL cholesterol analysis indicates the concentration of HDL particles in the blood. Higher levels of HDL cholesterol are generally associated with a lower risk of heart disease, as HDL helps remove LDL (low-density lipoprotein) cholesterol from the arteries, preventing the buildup of plaque.
Why is the analysis performed?
The analysis of HDL cholesterol is performed to evaluate an individual's risk of cardiovascular disease. It provides valuable information about the lipid profile, aiding in the assessment of overall heart health.
When should the analysis be done?
HDL cholesterol analysis is typically included as part of a lipid profile test, which is recommended every four to six years for adults aged 20 and older. However, it may be performed more frequently for individuals with certain risk factors or as part of routine health screenings.
What sample is required?
A blood sample is required for HDL cholesterol analysis. This sample is usually collected through a simple blood draw from a vein in the arm.
Is any prior preparation necessary?
Typically, no specific preparation is required for HDL cholesterol analysis. However, it's essential to follow any instructions provided by your doctor, which may include fasting for a certain period before the test.
What are the normal values?
Normal HDL cholesterol levels are generally considered to be 40 milligrams per deciliter (mg/dL) or higher. However, higher levels, such as 60 mg/dL or more, are associated with even greater cardiovascular protection.
|
HDL Cholesterol Level |
Interpretation |
|---|---|
|
Less than 40 mg/dL |
Low HDL cholesterol, increased risk of heart disease |
|
40 - 59 mg/dL |
Borderline to high HDL cholesterol, moderate risk of heart disease |
|
60 mg/dL or higher |
High HDL cholesterol, lower risk of heart disease |
What does having altered values mean?
Having low HDL cholesterol levels (less than 40 mg/dL) is considered a risk factor for heart disease, as it may indicate reduced ability to remove LDL cholesterol from the arteries. Conversely, having high HDL cholesterol levels is generally beneficial and is associated with a lower risk of cardiovascular disease.