The scale used in measuring cholesterol is?


A. Nominal
B. Ordinal
C. Interval
D. Discrete
E. Qualitative


Answer:

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The answer is C.
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Reference:


Cholesterol is found in every cell in your body. Cholesterol is used by your body to build healthy cells, as well as some vital hormones.

When you have high cholesterol, you may develop fatty deposits in your blood vessels. Eventually, these deposits make it difficult for enough blood to flow through your arteries. Your heart may not get as much oxygen-rich blood as it needs, which increases the risk of a heart attack. Decreased blood flow to your brain can cause a stroke.

High cholesterol (hypercholesterolemia) is largely preventable and treatable. A healthy diet, regular exercise and sometimes medication can go a long way toward reducing high cholesterol.

Symptoms

High cholesterol has no symptoms. A blood test is the only way to detect high cholesterol.

Causes

Cholesterol is carried through your blood, attached to proteins. This combination of proteins and cholesterol is called a lipoprotein. You may have heard of three different types of cholesterol, based on what type of cholesterol the lipoprotein carries. They are:

•Low-density lipoprotein (LDL). LDL, or "bad," cholesterol transports cholesterol particles throughout your body. LDL cholesterol builds up in the walls of your arteries, making them hard and narrow.

•Very-low-density lipoprotein (VLDL). This type of lipoprotein contains the most triglycerides, a type of fat, attached to the proteins in your blood. Like LDL cholesterol, VLDL cholesterol makes LDL cholesterol particles larger, causing your blood vessels to narrow. If you're taking cholesterol-lowering medication but have a high VLDL level, you may need additional medication to lower it because VLDL is high in triglycerides.

•High-density lipoprotein (HDL). HDL, or "good," cholesterol picks up excess cholesterol and takes it back to your liver.


More Details:

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http://www.ahrq.gov/clinic/2ndcps/lipid.pdf
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High blood cholesterol: All - MayoClinic.com
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