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Which Of The Following Statements About Cholesterol Is True

Which Of The Following Statements About Cholesterol

Which one of the following statements is true?
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The document you are viewing contains questions related to this textbook.Chemistry for Today: General, Organic, and Biochemistry

Effects Of High Cholesterol Levels

The liver is the main processing centre for cholesterol and dietary fat. When we eat animal fats, the liver transports the fat, together with cholesterol in the form of lipoproteins, into our bloodstream.

Too much cholesterol circulating within LDL in our bloodstream leads to fatty deposits developing in the arteries. This causes the vessels to narrow and they can eventually become blocked. This can lead to heart disease and stroke.

Safe Blood Cholesterol Levels

Health authorities recommend that cholesterol levels should be no higher than 5.5 mmol per litre if there are no other risk factors present. If there are other cardiovascular risk factors such as smoking and high blood pressure or pre-existing cardiovascular disease, then the aim for the LDL levels would be less than 2 mmol/l. Approximately half of all adult Australians have a blood cholesterol level above 5 mmol/l. This makes high blood cholesterol a major health concern in Australia.

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How Is The Total Cholesterol Or Blood Cholesterol Test Done

A blood test is a routine test. A phlebotomist is the person whose job it is to draw blood. Blood is usually drawn from the vein in your arm. You will sit down and the phlebotomist will wrap a rubber band around your upper arm so that the vein in your elbow sticks out. Then they will use a needle to puncture the vein and remove blood. The blood is sent to the lab to be examined.

Youve probably been at health fairs where testing is offered. In that case, the person performing the test takes a drop of blood from your finger. The finger stick test uses a small blade to poke a hole in the tip of your finger to get the blood.

Cholesterol: 5 Truths To Know

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About 71 million Americans have high cholesterol. A large part of preventing and treating the condition is understanding it. Here are five important cholesterol facts to know for better health.

Cholesterol is a natural component in everyones blood, and supports functions within the body. Its only when bad cholesterol causes plaque to build up in your arteries that its considered a major risk factor for heart attack, heart disease and stroke.

In fact, there are actually several different types of cholesterol. The most important one to focus attention on is low-density lipoprotein cholesterol, which has been known as bad cholesterol. High levels of this substance in the blood can call for medication or lifestyle changes to bring them down.

Visit the Calculating Your Cholesterol article for more information.

Recommended Reading: How Much Cholesterol Does The Body Need

What Are Hdl Ldl And Vldl

HDL, LDL, and VLDL are lipoproteins. They are a combination of fat and protein. The lipids need to be attached to the proteins so they can move through the blood. Different types of lipoproteins have different purposes:

  • HDL stands for high-density lipoprotein. It is sometimes called “good” cholesterol because it carries cholesterol from other parts of your body back to your liver. Your liver then removes the cholesterol from your body.
  • LDL stands for low-density lipoprotein. It is sometimes called “bad” cholesterol because a high LDL level leads to the buildup of plaque in your arteries.
  • VLDL stands for very low-density lipoprotein. Some people also call VLDL a “bad” cholesterol because it too contributes to the buildup of plaque in your arteries. But VLDL and LDL are different; VLDL mainly carries triglycerides and LDL mainly carries cholesterol.

How Is High Cholesterol Treated

There are several ways to lower high blood cholesterol , including lifestyle changes or medication, or both. Your healthcare provider will work with you to determine which therapy is best for you.

Lifestyle modifications

Healthcare providers like to start with the least invasive treatments when possible, such as lifestyle changes. Youll be advised to:

  • Avoid tobacco. If you do smoke, quit. Smoking is bad for you in many ways, and reducing your level of good cholesterol is one of them.
  • Change the way you eat. Limit the amount of trans fats and saturated fat. Eat heart-healthy foods like fruits, vegetables, poultry, fish and whole grains. Limit red meat, sugary products and dairy products made with whole milk.
  • Get more exercise. Try to get about 150 minutes of physical activity every week, or about 30 minutes per day for most days of the week.
  • Keep a healthy weight. If you need to lose weight, talk to your healthcare provider about safe ways to do this. Youll see results even before you reach your ideal weight. Losing even 10% of your body weight makes a difference in your cholesterol levels.
  • Reduce the effect of negative emotions. Learn healthy ways to deal with anger, stress or other negative emotions.
  • Control blood sugar and blood pressure. Make sure you follow your healthcare providers instructions for blood sugar levels, especially if you have diabetes, and for keeping blood pressure in the healthy range.

Medications

  • Atorvastatin .
  • Simvastatin .
  • Pitavastatin .

Read Also: How Does Stress Affect Cholesterol Levels

Medication May Be Needed

For some people, diet and lifestyle changes are not enough. High blood cholesterol levels often have a genetic component. Some people inherit altered genes that cause high cholesterol and this cannot usually be changed sufficiently by lifestyle or diet.

If you are at risk of coronary heart disease and your LDL cholesterol level doesnt drop after scrupulous attention to diet, your doctor may recommend medications to force your blood LDL levels down. Cell cholesterol levels, however, remain normal, so lowering blood cholesterol has no effect on most cell metabolic processes.

Some people get muscle aches from statins, which are the most commonly used medication to lower blood cholesterol. However, diet and exercise will still be important, even if you are taking medication. Your doctor may also refer you to a specialist who treats cardiovascular disease.

What Can Raise My Risk Of High Cholesterol

Read the following : a. Lymph absorbs and transports fat from the intestine . b. Lymph nodes

A variety of things can raise your risk for high cholesterol:

  • Age. Your cholesterol levels tend to rise as you get older. Even though it is less common, younger people, including children and teens, can also have high cholesterol.
  • Heredity. High blood cholesterol can run in families.
  • Weight. Being overweight or having obesity raises your cholesterol level.
  • Race. Certain races may have an increased risk of high cholesterol. For example, African Americans typically have higher HDL and LDL cholesterol levels than whites.

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When Should You Contact Your Healthcare Provider About Your Cholesterol Levels

In truth, your healthcare provider will probably talk to you about your numbers first. As always, contact your provider if you have any new or worsening pain or other uncomfortable feelings. Make sure you know what medications you take and what they are expected to do. Call the provider if you have a reaction to the medicine.

Before you go to the office, and after you have had a cholesterol test, it helps to have a list of questions prepared about your test results and any proposed treatment.

A note from Cleveland Clinic

When considering cholesterol numbers, its important to remember that you really have the ability to make those numbers go in your favor. What you choose to eat, how much you are able to move and how you deal with lifes ups and downs are things that you can influence.

Last reviewed by a Cleveland Clinic medical professional on 07/31/2020.

References

Ldl Cholesterol Levels Are A Major Factor In Risk For Cardiovascular Disease

New guidelines on assessing peoples risk for cardiovascular disease emphasize the importance of LDL cholesterol. For those with known heart disease whose LDL is 70 mg/dl or higher, medication can help bring levels down. Likewise, people without heart disease whose LDL is above 190 in two separate readings should be evaluated for an inherited condition called familial hypercholesterolemia and develop a treatment plan.

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Transfer Rna Functions In Trans 02: 36

Which of the following statements about cholesterol and the body are true? On the pc version, you can press left alt + 1/2/3/4 to switch to the corresponding character in your party. Which of the statements are true? Amber’s precise shot talent allows her to gain additional crit rate for a certain period after hitting. Lindsey yang is a famous general. Which one of the following statements about the number 0.16 is correct? Which of the following statements about the childe boss fight is true? It requires integral proteins in the cell membrane. When does the boreas fight refresh every week? Transfer rna functions in trans 02:36. Which of the following statements about dvalin’s caelestinum finale termini ability is false? Prions contain dna and rna. Which of the following statements about diffusion is true?

Which one of the following statements about the number 0.16 is correct? Cholesterol is carried in our blood by substances called lipoproteins, and there are several different types, carrying cholesterol for different purposes. When xiangling uses her elemental skill, guoba will deal q: Which of the following statements about cholesterol and the body are true? Which of the following statements about seelie is true?

How Do You Prepare For A Cholesterol Test

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In most cases, youll need to fast for nine to 12 hours before the test. Make sure you tell the person drawing your blood how long it has been since you ate or drank anything that wasnt water.

There are some cases when a cholesterol test is done without fasting. This is true for tests done at health screenings and may be true for people younger than 20 or for people who are unable to fast.

Some medical societies believe that fasting is not necessary to get a true picture of lipid levels in the blood, while other associations stand by the belief that fasting gives a better idea of a persons heart disease risk. You should be clear on whether or not you need to fast, and for how long, before you go for the blood test.

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Which Of The Following Are Not True Of Cholesterol

Do you think its a) food is our bodys only source of cholesterol b) our bodies need cholesterol c) the liver plays a crucial role in our bodys cholesterol levels d) there is both good & bad types of cholesterol?

Did you guess C because the livers job is to clean impurities from our body? Well, sorry, but another job of the liver is to make all the cholesterol our bodies need. We need cholesterol, but we dont need to eat any foods with cholesterol to fill that need. The correct answer is therefore A.

A New Class Of Drugs Can Dramatically Lower Your Ldl Cholesterol

PSCK9 inhibitors are introducing a new era in treating high cholesterol, especially the kind thats genetically inherited. Treatment with PSCK9 inhibitors can cut LDL levels by 50% or more. Although the drugs are very expensive now, manufacturers, pharmacists and doctors are working together to help make them available to more patients.

Recommended Reading: Will Fish Oil Capsules Lower Cholesterol

Overview Of Cholesterol And Lipid Disorders

, MD, The University of Chicago Medicine

The body needs fats for growth and energy. It also uses them to synthesize hormones and other substances needed for the bodys activities. The body may deposit excess fat in blood vessels and within organs, where it can block blood flow and damage organs, often causing serious disorders.

Important fats found in the blood are

  • Cholesterol

  • Triglycerides

Cholesterol is an essential component of cell membranes, of brain and nerve cells, and of bile, which helps the body absorb fats and fat-soluble vitamins. The body uses cholesterol to make vitamin D and various hormones, such as estrogen, testosterone, and cortisol. The body can produce all the cholesterol that it needs, but it also obtains cholesterol from food.

Triglycerides, which are contained in fat cells, can be broken down, then used to provide energy for the bodys metabolic processes, including growth. Triglycerides are produced in the intestine and liver from smaller fats called fatty acids. Some types of fatty acids are made by the body, but others must be obtained from food.

Fats, such as cholesterol and triglycerides, cannot circulate freely in the blood, because blood is mostly water. To be able to circulate in blood, cholesterol and triglycerides are packaged with proteins and other substances to form particles called lipoproteins.

  • Chylomicrons

  • Low-density lipoproteins

  • Very low density lipoproteins

Lipid levels may be

  • Too low

An Overview Of Lipoproteins

All the following statement are correct about Aves but one is wrong which one is wrong ?

Chylomicrons are large lipoproteins 751,200 nm in diameter that are very rich in lipids , mainly triglycerides and cholesterol , and have the lowest protein content of all lipoproteins. Chylomicrons are only synthesized in the intestine and are produced in large amounts during fat ingestion . In normolipidemic individuals they are present in the plasma for 3 to 6 hours after fat ingestion and are absent after 10 to 12 hours fasting .

10 . Increased LDL levels can result from

A)
a deficiency of thyroid hormones.
C) genetic mutations of either the LDL receptor or Apo B-100.
D) All of the above

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Which Of The Following Statements About Xiangling Is True

It requires integral proteins in the cell membrane. As hdl cholesterol levels increase there is an increased risk. The wingtip toys forest hosts a web application that users in the tailspin toys forest need to access. It has been linked to anemia. In inelastic collisions, some of the kinetic energy goes into the heat energy, with total energy and momentum still being conserved. Which one of the following statements about the number 0.16 is correct? Abstract classes are classes that contain one or more abstract methods. Which of the following statements are true about the. Is the following statement true? Vigorous exercise can lower serum cholesterol levels. Adding regularization may cause your classifier to incorrectly classify some training examples (which it had correctly classified when not using regularization, i.e. Which of the following statements about correlation is true?choose the correct answer below.a. When does the boreas fight refresh every week?

Cholesterol is carried in our blood by substances called lipoproteins, and there are several different types, carrying cholesterol for different purposes. An abstract method is a method that is declared, but contains no implementation. Which of the following statements is true concerning human blood? Which of the following statements is wrong? It is also referred to as a sterol which is also known as a modified steroid, it is considered as a kind of lipid.

What Health Problems Can High Cholesterol Cause

If you have large deposits of plaque in your arteries, an area of plaque can rupture . This can cause a blood clot to form on the surface of the plaque. If the clot becomes large enough, it can mostly or completely block blood flow in a coronary artery.

If the flow of oxygen-rich blood to your heart muscle is reduced or blocked, it can cause angina or a heart attack.

Plaque also can build up in other arteries in your body, including the arteries that bring oxygen-rich blood to your brain and limbs. This can lead to problems such as carotid artery disease, stroke, and peripheral arterial disease.

Read Also: What Is Average Cholesterol Range

What Kind Of Test Measures Cholesterol

Everyone over the age of 20 should get their cholesterol levels measured at least once every five years. Your healthcare provider will order a blood test that will indicate how much cholesterol is carried in your bloodstream. This test will give your cholesterol levels. Your provider might also order what is called a lipid panel or a lipid profile. The panel gives you the following numbers:

  • Total cholesterol.
  • Non-HDL cholesterol.
  • Ratio between cholesterol and HDL.

There are advanced tests that break down the size and shapes of LDL cholesterol levels, and also give the LDL particle number, but those are not normally ordered. Some test makers say that the more advanced tests are better at indicating who is at risk for heart disease, but most providers still feel that the usual tests are adequate.

Plant Sterols Can Lower Cholesterol Levels

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Plant sterols are found naturally in plant foods including sunflower and canola seeds, vegetable oils and in nuts, legumes, cereals, fruit and vegetables. Some margarine and milks have concentrated plant sterols added to them. Margarines enriched with plant sterolslower LDL cholesterol in most people if the correct amount is eaten .

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