NURS 2500: Perfusion A
Perfusion - Answer the flow of blood through arteries and capillaries delivering nutrients and
oxygen to cells
preload - Answer volume of blood in ventricles at the end of diastole
afterload - Answer resistance left ventricle must overcome to circulate blood
hypertension and vasoconstriction - Answer afterload is increased in what 2 conditions?
hypervolemia, regurgitation of cardiac valves, heart failure - Answer preload is increased in
what 3 conditions?
arteries - Answer thick elastic smooth muscle that can vasodilate and vasoconstrict
ischemia - Answer reduction or interruption of oxygenated blood flow can lead to this
condition
tissue hypoxia - Answer reduction of blood flow can lead to this causing cell death
risk factors for poor perfusion - Answer hypertension, age, obesity, smoking
alpha adrenergic and beta adrenergic - Answer what receptors are responsible for regulation
of BP
sympathetic vasomotor centre - Answer regulates BP by increasing it when exercising
kidneys - Answer what organ plays a big role in blood pressure?
RAAS system - Answer this is triggered by low BP, low BV, Hyponatremia and low renal
perfusion
angiotensin, renin, angiotensin II, adrenal glands, aldosterone, vasoconstrictor - Answer in
the RAAS system, the liver releases ___ into the blood stream while the kidneys release___
when triggered by low BP . ACE from the lungs turns angiotensin I into ____ which acts on the
____ to stimulate the release of ____ which stimulates reabsorption of sodium and water.
Angiotensin II is a ____
Perfusion - Answer the flow of blood through arteries and capillaries delivering nutrients and
oxygen to cells
preload - Answer volume of blood in ventricles at the end of diastole
afterload - Answer resistance left ventricle must overcome to circulate blood
hypertension and vasoconstriction - Answer afterload is increased in what 2 conditions?
hypervolemia, regurgitation of cardiac valves, heart failure - Answer preload is increased in
what 3 conditions?
arteries - Answer thick elastic smooth muscle that can vasodilate and vasoconstrict
ischemia - Answer reduction or interruption of oxygenated blood flow can lead to this
condition
tissue hypoxia - Answer reduction of blood flow can lead to this causing cell death
risk factors for poor perfusion - Answer hypertension, age, obesity, smoking
alpha adrenergic and beta adrenergic - Answer what receptors are responsible for regulation
of BP
sympathetic vasomotor centre - Answer regulates BP by increasing it when exercising
kidneys - Answer what organ plays a big role in blood pressure?
RAAS system - Answer this is triggered by low BP, low BV, Hyponatremia and low renal
perfusion
angiotensin, renin, angiotensin II, adrenal glands, aldosterone, vasoconstrictor - Answer in
the RAAS system, the liver releases ___ into the blood stream while the kidneys release___
when triggered by low BP . ACE from the lungs turns angiotensin I into ____ which acts on the
____ to stimulate the release of ____ which stimulates reabsorption of sodium and water.
Angiotensin II is a ____
