Cholesterol Tests - Fasting Blood Tests
The purpose of Fasting Blood Tests
Cholesterol travels through the blood and is attached to a protein. This cholesterol-protein package is called a lipoprotein. Lipoprotein analysis (lipoprotein profile or lipid profile) measures blood levels of total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides.
Fasting blood tests measure the total amount of fatty substances (cholesterol and triglycerides) levels in the blood. It is also named “Lipoprotein Profile” or “Lipoprotein Analysis”
This test measures:
- total cholesterol (the total amount of cholesterol in blood)
- HDL, high density lipoprotein (good cholesterol)
- LDL, low density lipoprotein (bad cholesterol)
- triglycerides, another fatty substance found in the body.
Blood cholesterol measurements is applied to help minimize the risk of stroke, heart attack, and peripheral artery disease. The cholesterol level is one of the many risk factors that can be controlled.
Cholesterol Tests Preparation
Preparation before the test
Fasting allows proper interpretation of blood lipid levels. Patient will be requested not eating or drink anything (except for water) for 14 hours before the blood is drawn. He/She should not drink alcohol for 48 hours prior to the test.
Interpretation of cholesterol and triglyceride levels in the blood are based upon guidelines from a variety of medical organizations including the American Heart Association.
Human body uses cholesterol to build cells and to produce hormones as well. Too much cholesterol in the blood can build up inside arteries, forming what is known as plaque. Large amounts of plaque increase chances of having a heart attack or stroke.
HDL (high-density lipoprotein) (good cholesterol)
helps removing fat from human body by binding with it in the bloodstream and carrying it back to the liver for disposal. A high level of HDL cholesterol may lower chances of developing heart disease or stroke.
LDL (low-density lipoprotein) (bad cholesterol)
carries mostly fat and a small amount of protein from the liver to other parts of the body. A certain level of LDL in your blood is normal and healthy because LDL moves cholesterol to the parts of human body that need it. But its high level may increase chances of developing heart disease.
VLDL: (very low-density lipoprotein)
contains very little protein. The main function of VLDL is distributing the triglyceride produced by liver. A high level of VLDL cholesterol can cause the accumulation of of cholesterol in arteries and increases the risk of heart disease and stroke.
a type of fat used by human body for storing energy and giving energy to muscles. Only small amounts are found in the blood. Having a high triglyceride level along with a high LDL cholesterol level may increase chances of heart disease more than having only a high LDL cholesterol level.
Fasting for Blood Work
Can I Eat or Drink?
Understanding Your Results by Decarb Diet Low Carb Lifestyle