NURS 370: Final Exam Questions with Correct
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What is stroke volume? The volume that leaves the left ventricle per pump.
Stroke volume is an SV is an important indicator of how efficiently the
important indicator of heart can meet the body's demands for adequate
_______ perfusion.
When heart rate increases, stroke volume tends to
DECREASE due to the ventricles pumping faster than
they can fill
When HR increases,
Stroke volume (SV) ________
Vice versa: A decreased heart rate allows for the
ventricles to fill up more leading to an increased
stroke volume
Dizziness/Lightheaded
S/S of Decreased Stroke Cool
Volume Pale
Poor/delayed cap refill
Fill in the blanks: CO = ____ CO = HR x SV
x _____
Preload
What are the 3
Afterload
components of SV
Contractility
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, 10/21/25, 4:49 AM NURS 370: Final Exam Questions with Correct Answers Flashcards | Quizlet
How much blood we have to eject
Define Preload
Th stretch of the ventricles
Hypervolemia
What conditions increase
Heart failure
preload
Regurgitation of cardiac valves
How much force needed to get blood out of the
Define afterload
ventricles and in the vessels.
Conditions that increase HTN
afterload Vasoconstriction
Conditions that decrease Hypotension
afterload Vasodilation
Define contractility Strength of the heart pumping muscle.
What conditions impact Heart failure
heart contractility electrolyte disturbances
What drug has an effect Cardiac meds can affect one or more of the
on one or more of the components: preload, afterload, contractility
stroke volume
components
SA node conducts at what 60-100 bpm
speed
SA
Describe the conduction AV
pathway of the heart Bundle of HIS
Purkinje Fibers
T or F: If the SA node fails, True
the AV node takes over,
and so on
The AV node conducts at 40-60 bpm
what speed
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