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NU 327 Exam 4 Questions with
Detailed Verified Answers
Question: What is the goal of the circulatory system?
Ans: transport oxygen and nutrients and the removal of metabolic waste
in the body
Question: What is the role of the lymphatic system?
Ans: reabsorbs fluid that leaks out of vascular network
Question: Describe the structure of arteries
Ans: 3 layers
- tunica intima: endothelial cells, direct contact w the blood and smooth
- tunica media: muscular tissue that constricts and dilates when needed
- tunica adventitia: connective tissue
Question: What effect does the composition of the blood have on the
endothelium?
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Ans: - high cholesterol causes injury to the endothelial wall and fat
deposits on artery walls
- glucose damages walls
- vasoconstriction
- nicotine
Question: Hyperlipidemia
Ans: elevated levels of lipids in the blood stream
Question: Etiology Hyperlipidemia
Ans: - elevated levels of lipids
- leads to atherosclerosis
- 20% of adults older than 20
Question: What are the effects of smoking on the body?
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Ans: - increased thrombus formation
- nicotine elevates levels of LDL and decreases levels of HDL
- vasospasms
- increased platelet aggregation
- release of endogenous catecholamines
coronary heart disease
Question: Saturated Fats
Ans: solid forms of animal fats (meat, eggs, butter, cheese)
Question: Unsaturated Fats
Ans: liquid forms of fat (any kinda oil)
Question: S&S Of Hyperlipidemia
Ans: - some are asymptomatic until there is a problem
- xanthoma and xanthelasma
- yellow ring around cornea (arcus senilis)
- metabolic syndrome (obesity, HTN, glucose intolerance)
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Question: How is hyperlipidemia diagnosed?
Ans: - Total cholesterol: less than 200 mg/dL
- LDL: less than 100
- HDL: above 60 less than 40 is at risk for heart disease
- triglycerides: less than 150 mg/dL
Question: How is hyperlipidemia treated?
Ans: - life style changes
- drugs for reducing triglycerides and cholesterol
- angioplasty
- CABG
Question: stroke volume (SV)
Ans: volume of blood leaving the heart w each contraction
Question: peripheral vascular resistance (PVR)
Ans: resistance to ejection radius of arteries affect it
Question: What is cardiac output and what is normal?
NU 327 Exam 4 Questions with
Detailed Verified Answers
Question: What is the goal of the circulatory system?
Ans: transport oxygen and nutrients and the removal of metabolic waste
in the body
Question: What is the role of the lymphatic system?
Ans: reabsorbs fluid that leaks out of vascular network
Question: Describe the structure of arteries
Ans: 3 layers
- tunica intima: endothelial cells, direct contact w the blood and smooth
- tunica media: muscular tissue that constricts and dilates when needed
- tunica adventitia: connective tissue
Question: What effect does the composition of the blood have on the
endothelium?
, Page | 2
Ans: - high cholesterol causes injury to the endothelial wall and fat
deposits on artery walls
- glucose damages walls
- vasoconstriction
- nicotine
Question: Hyperlipidemia
Ans: elevated levels of lipids in the blood stream
Question: Etiology Hyperlipidemia
Ans: - elevated levels of lipids
- leads to atherosclerosis
- 20% of adults older than 20
Question: What are the effects of smoking on the body?
, Page | 3
Ans: - increased thrombus formation
- nicotine elevates levels of LDL and decreases levels of HDL
- vasospasms
- increased platelet aggregation
- release of endogenous catecholamines
coronary heart disease
Question: Saturated Fats
Ans: solid forms of animal fats (meat, eggs, butter, cheese)
Question: Unsaturated Fats
Ans: liquid forms of fat (any kinda oil)
Question: S&S Of Hyperlipidemia
Ans: - some are asymptomatic until there is a problem
- xanthoma and xanthelasma
- yellow ring around cornea (arcus senilis)
- metabolic syndrome (obesity, HTN, glucose intolerance)
, Page | 4
Question: How is hyperlipidemia diagnosed?
Ans: - Total cholesterol: less than 200 mg/dL
- LDL: less than 100
- HDL: above 60 less than 40 is at risk for heart disease
- triglycerides: less than 150 mg/dL
Question: How is hyperlipidemia treated?
Ans: - life style changes
- drugs for reducing triglycerides and cholesterol
- angioplasty
- CABG
Question: stroke volume (SV)
Ans: volume of blood leaving the heart w each contraction
Question: peripheral vascular resistance (PVR)
Ans: resistance to ejection radius of arteries affect it
Question: What is cardiac output and what is normal?
