An Introduction to Cholesterol Testing
The only way to find out if you have
high cholesterol is to have a blood
cholesterol test. You can have high cholesterol for many years without feeling its effects. In fact, most people with high cholesterol feel no different than those without it.
According to recent guidelines, a person should get a fasting test for cholesterol every five years. For a person with
risk factors for heart disease, he or she should get tested more frequently.
There are several types of tests available. Each test measures different components of cholesterol and fats in the blood, including:
Some tests, like a lipid profile done at the doctor's office, will look at all four components. Other tests, like most
home cholesterol tests, only look at total cholesterol. Some tests also provide a
cholesterol ratio or
VLDL (very low density lipoprotein) as part of their results.
It is best to have a blood cholesterol test called a "lipoprotein profile" or "lipid profile" to find out your
cholesterol levels. This test is done after a 9- to 12-hour fast and gives information about your:
- Total cholesterol
- LDL
- HDL
-
Triglycerides.