By: Savannah Harper and Kortney LambrightšŸ˜ƒ


LDL is a low- Density lipoprotein that adds cholesterol to different parts of that body that need it. LDL cholesterol is considered bad because large amounts can cause build up and clogs arteries. HDL is a High-density lipoprotein that removes cholesterol from the plaque in the arteries. HDL is considered the "good" cholesterol. It binds with cholesterol in the blood stream and carries it to the liver for disposal.

How does LDL and HDL differ structually and functionally?

HDL and LDL differ in shape, greatly. In the HDL there is a higher amount of protein and lower amount of liquid. The LDL has more lipids than protein, but LDL is much larger than HDL. Function wise these two things are also different HDL picks up more cholesterol from blood vessels and tissue, then after it all gets picked up it takes it to the liver to be broken down. As of LDL it carries cholesterol to various tissue areas, that need it. But when it is not needed it will just float around in the blood stream, this is also known as bad cholesterol.

How are concentrations of LDL and HDL associated with the risk of heart disease and assiotated disorders?

It would be high amounts of LDL which would put you at risk for heart disease and associated disorders. The reasoning for this is because LDL is the "bad" cholesertol that will be more likely to clot your arteries. And when it does that then you will increase your chance of heart attack and associated heart disease.

Why do doctors monitor the concentrations of LDL and HDL in patientsā€™ blood?

Doctors monitor the concentration of LDL and HDL in a patients blood to assess the patients risk of heart disease.

What other molecules in a paitents blood are monitored along with LDL and HDL?

Other molecules that are monitored would be triglycerides, blood sugar levels, and the total amount of cholesterol.

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What can patients do to change the levels of LDL and HDL in their blood?

Some things you can do to change your LDL and HDL level would be dieting, exercise, and medication. Your diet should include foods that are reduced fat and cholesterol. You should also limit your saturated fat intake. For exercise you should exercise 30 minutes a day for 5 days a week. You can also take medication, such as Nicotinic acid(also known as niacin),to change your LDL and HDL levels.
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What do the results of a cholesterol test mean? How do patients interpret each value?

The cholesterol test is a test that we be measuring your cholesterol in milligrams per deciliter of blood. So, they would be testing your blood to see how much cholesterol you have in your blood and if you should consider changing your life style to make you have a healthier lifestyle. That is one ways patients interpret this. Also another way is because of this test doctors are able to predict your life expectancy or if it is possible for you to have a stroke or heart attack in the near future.

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How does the intake of unsaturated, saturated, and trans fat affect cholesterol levels and overall health.

First off, too much of each of these could cause a personā€™s LDL to increase greatly. Which is something you really don't want to happen, because that is the one that could clog arteries and cause heart attack or other health related situations. If there is more LDL than HDL you could be at high risk for a heart attack or stroke. Unsaturated fats are the fats you want to have for health. They do a lot of good things to your body, depending on how much you intake. But, they can improve your blood cholesterol levels, ease inflammation, they can help by making heart beat more where they are supposed to be and help them go into rhythm. But in all of this it just depends on what you are actually eating. Like for example if you are consuming olive oil or canola oil you would be raising the good (HDL) cholesterol. But now if you are eating things such as red meat, so saturated fats you will be increasing the LDL which is what you want to stay away from. And one of the biggest things you want to stay away from is trans fats, things such as baked good, fast food, or chips. Those things will raise your LDL extremely and almost immediately.

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Works Cited

Payne, J. (2009, May). Lowering ldl cholesterol. U.S.& World Report News. Retrieved from

Vaughn, A. (2012, December). BioMed 5.1 final powerpoint. Prezi. Retrieved from (n.d.), Cholesterol and triglycerides blood test types.. Retrieved from