NURS 3303 Exam 3 Questions And
Correct Answers.
Blood pressure - Answer Pressure against walls of arteries at systole and diastole of heart
Systole - Answer Contraction of the heart
Diastole - Answer Heart at reat
Pulse pressure - Answer Systolic BP - Diastolic BP
Peripheral Vascular Response(PVR) - Answer Affect of peripheral blood vessels against blood
exiting the heart
Compliance - Answer Ability of blood vessel to distend based on rise in BP
Preload - Answer Volume of blood entering/filling heart, each diastole
Frank starlings law - Answer Amount of stretch affects strength of contraction
After load - Answer Pressure left ventricle must overcome to push blood out of
Cardiac output (CO) - Answer Volume of blood per minute exiting the left ventricle
Stroke Volume (SV) - Answer Volume per contraction exiting the left ventricle
Atrial System - Answer -high pressure system
-carries oxygenated blood from heart to tissues
Tunica intima (endothelium) - Answer -secrete chemical mediators
-susceptible to damage
Tunics media - Answer -constrict
-dilate
, Tunica externa - Answer -Supportive connective tissue
Artery open -normal - Answer -Flow is easy
-vessel pressure is lower
-decreased resistance
Artery closed -obstructed - Answer -flow is turbulent
-vessel pressure is higher
-increased resistance
-lead to thrombus formation
Blood pressure regulation - Answer -baroreceptors
-RAAS System
-Antidiuretic hormone
-natriuresis
CO equations - Answer CO=BP/PVR
CO=SV x HR
Stroke volume is affected by - Answer -preload
-after load
-contractility
No modifiable cardiovascular disease risk factors - Answer Age: older
Gender: male or postmenopausal female
race: African American
Family history
modifiable cardiovascular disease risk factors - Answer Hyperlipidemia: increased LDL
Obesity: increases demand on heart>increased coagulation factors>risk for thrombosis
Tobacco: decreases HDL
Hypertension: causes chemicals to release leading to vasoconstriction, increases pressure leads
to plaque rupture, increases triglycerides & LDL> atherosclerosis
Diabetes: low HDL, increased blood sugar> production of clots or glycosylation>vasoconstriction
Correct Answers.
Blood pressure - Answer Pressure against walls of arteries at systole and diastole of heart
Systole - Answer Contraction of the heart
Diastole - Answer Heart at reat
Pulse pressure - Answer Systolic BP - Diastolic BP
Peripheral Vascular Response(PVR) - Answer Affect of peripheral blood vessels against blood
exiting the heart
Compliance - Answer Ability of blood vessel to distend based on rise in BP
Preload - Answer Volume of blood entering/filling heart, each diastole
Frank starlings law - Answer Amount of stretch affects strength of contraction
After load - Answer Pressure left ventricle must overcome to push blood out of
Cardiac output (CO) - Answer Volume of blood per minute exiting the left ventricle
Stroke Volume (SV) - Answer Volume per contraction exiting the left ventricle
Atrial System - Answer -high pressure system
-carries oxygenated blood from heart to tissues
Tunica intima (endothelium) - Answer -secrete chemical mediators
-susceptible to damage
Tunics media - Answer -constrict
-dilate
, Tunica externa - Answer -Supportive connective tissue
Artery open -normal - Answer -Flow is easy
-vessel pressure is lower
-decreased resistance
Artery closed -obstructed - Answer -flow is turbulent
-vessel pressure is higher
-increased resistance
-lead to thrombus formation
Blood pressure regulation - Answer -baroreceptors
-RAAS System
-Antidiuretic hormone
-natriuresis
CO equations - Answer CO=BP/PVR
CO=SV x HR
Stroke volume is affected by - Answer -preload
-after load
-contractility
No modifiable cardiovascular disease risk factors - Answer Age: older
Gender: male or postmenopausal female
race: African American
Family history
modifiable cardiovascular disease risk factors - Answer Hyperlipidemia: increased LDL
Obesity: increases demand on heart>increased coagulation factors>risk for thrombosis
Tobacco: decreases HDL
Hypertension: causes chemicals to release leading to vasoconstriction, increases pressure leads
to plaque rupture, increases triglycerides & LDL> atherosclerosis
Diabetes: low HDL, increased blood sugar> production of clots or glycosylation>vasoconstriction
