BSNC 1000 – PERFUSION UPDATED
Exam Questions and CORRECT Answers
Central perfusion - CORRECT ANSWER - Generated by cardiac output - the amount of
blood pumped by the heart each minute
Perfusion - CORRECT ANSWER - the flow of blood through arteries and capillaries
delivering nutrients and oxygen to cells and removing cellular waste products
Ischemia - CORRECT ANSWER - an inadequate blood supply to an organ or part of the
body, especially the heart muscles.
Systolic pressure - CORRECT ANSWER - Blood pressure in the arteries during
contraction of the ventricles.
Diastolic pressure - CORRECT ANSWER - Blood pressure in the arteries when the
ventricles are relaxed.
Stroke volume - CORRECT ANSWER - The amount of blood ejected from the heart in
one contraction.
Cardiac output - CORRECT ANSWER - heart rate (HR) x stroke volume (SV)
The amount of blood ejected per minute
Preload - CORRECT ANSWER - volume of blood in ventricles at end of diastole
(Contraction)
Tissue perfusion - CORRECT ANSWER - blood flow through body tissues
, Capillary hydrostatic pressure - CORRECT ANSWER - pressure exerted by blood on the
capillary walls that forces fluids through the capillary walls into the interstitial spaces. This
allows delivery of oxygen, fluid and nutrients to cells.
RAAS - CORRECT ANSWER - renin-angiotensin-aldosterone system
Components of the circulatory system - CORRECT ANSWER - Heart, arterial system,
venous system, capillary beds
Scope of perfusion - CORRECT ANSWER - Optimal, impaired, no perfusion
Impaired perfusion - CORRECT ANSWER - - Ischemia
- Cell/tissue injury
What conditions cause impairment of central perfusion? - CORRECT ANSWER - - Where
cardiac output is decreased
- Where shock is involved
What conditions cause impairment of tissue perfusion? - CORRECT ANSWER --
Occlusion, constriction or dilation of arteries, veins
No perfusion - CORRECT ANSWER - - Infarction
- Cell death
Blood pressure - CORRECT ANSWER - the pressure that is exerted by the blood against
the walls of blood vessels. Measured in mm Hg.
Pulse pressure - CORRECT ANSWER - systolic pressure - diastolic pressure
Exam Questions and CORRECT Answers
Central perfusion - CORRECT ANSWER - Generated by cardiac output - the amount of
blood pumped by the heart each minute
Perfusion - CORRECT ANSWER - the flow of blood through arteries and capillaries
delivering nutrients and oxygen to cells and removing cellular waste products
Ischemia - CORRECT ANSWER - an inadequate blood supply to an organ or part of the
body, especially the heart muscles.
Systolic pressure - CORRECT ANSWER - Blood pressure in the arteries during
contraction of the ventricles.
Diastolic pressure - CORRECT ANSWER - Blood pressure in the arteries when the
ventricles are relaxed.
Stroke volume - CORRECT ANSWER - The amount of blood ejected from the heart in
one contraction.
Cardiac output - CORRECT ANSWER - heart rate (HR) x stroke volume (SV)
The amount of blood ejected per minute
Preload - CORRECT ANSWER - volume of blood in ventricles at end of diastole
(Contraction)
Tissue perfusion - CORRECT ANSWER - blood flow through body tissues
, Capillary hydrostatic pressure - CORRECT ANSWER - pressure exerted by blood on the
capillary walls that forces fluids through the capillary walls into the interstitial spaces. This
allows delivery of oxygen, fluid and nutrients to cells.
RAAS - CORRECT ANSWER - renin-angiotensin-aldosterone system
Components of the circulatory system - CORRECT ANSWER - Heart, arterial system,
venous system, capillary beds
Scope of perfusion - CORRECT ANSWER - Optimal, impaired, no perfusion
Impaired perfusion - CORRECT ANSWER - - Ischemia
- Cell/tissue injury
What conditions cause impairment of central perfusion? - CORRECT ANSWER - - Where
cardiac output is decreased
- Where shock is involved
What conditions cause impairment of tissue perfusion? - CORRECT ANSWER --
Occlusion, constriction or dilation of arteries, veins
No perfusion - CORRECT ANSWER - - Infarction
- Cell death
Blood pressure - CORRECT ANSWER - the pressure that is exerted by the blood against
the walls of blood vessels. Measured in mm Hg.
Pulse pressure - CORRECT ANSWER - systolic pressure - diastolic pressure
