Chapter 27: Dyslipidemia Flashcards
What is cholesterol? What is its role in the body?
Cholesterol is an important component of healthy cells. It makes up cell walls, it is used in the synthesis of hormones, and it creates bile acids
What are bile acids?
Bile acids are created by the liver and sent to the small intestine. They come here to absorb the fat that is found in the small intestine.
What is enterohepatic recycling?
After the bile acids absorb the fat in the small intestine, they turn into bile salts which are then returned to the liver.
How does cholesterol exit the body?
It exits the body as either free cholesterol or bile acids
What does Ezetimibe do?
Ezetimibe blocks the absorption of cholesterol in the intestines which then ultimately causes a decrease in cholesterol in the person.
What do Bile-Acid Sequestrants (Such as Colesevelam) do?
They block the enterohepatic circulation which then causes a decrease of cholesterol in the person.
What do statins do?
They block the formation of statins.
What do statins do?
They block the formation of statins.
What is atherosclerosis?
This is the build-up of plaque upon the inner walls of the arteries. This plaque is made up of cholesterol, fats, and other such materials. Atherosclerosis ultimately leads atherosclerotic cardiovascular disease (ASCVD) such as MI, strokes, angina, and peripheral arterial disease.
What are the 3 types of cholesterol?
- HDL: This is the good lipoprotein: It transports lipoproteins to the liver for removal from the body.
- LDL: Bad lipoprotein
- VLDL: Bad lipoprotein
- Having a high triglyceride level is also associated with cardiovascular disease. Greater than 500 mg/dl is considered hypertriglyceridemia.
What is dyslipidemia?
Dyslipidemia means having unhealthy levels of lipoproteins. It can either be primary or secondary. Primary dyslipidemia means that the dyslipidemia is caused by genes passed down by family. Secondary means it is caused by lifestyle, medical conditions, poor diet and exercise, etc…
How are cholesterol levels determined?
Lipid panels are taken after a 9-12 hour fast. If that’s not used, the friedewald equation is used: LDL=TC-HDL-TG/5. However, the friedewald equation is not used when the TG level is above 400 mg/dl.
What are the values listed in the lipid chart?
Non-HDL: <130 desirable LDL: <100 desirable >190 Very high HDL: >40 (men): Desirable >50 (Women): Desirable Triglycerides: <150 mg/dl: Desirable >500 mg/dl: Very high
What organization provides the treatment principles for treating dyslipidemia?
American College of Cardiology/American Heart Association (ACC/AHA)
What is ASCVD Risk?
ASCVD risk calculation is a calculation done to estimate an individual’s risk of having a cardiovascular event (MI, stroke, or death) in the next 10 years. Providers use this to determine the risk of the individual and based on that make a decision on how to treat them. The risk calculator is available online.