NURS 370: Final Exam Questions with Correct Answers (Grade A+)
Question 1: What is stroke volume?
Answer: The volume that leaves the left ventricle per pump.
Question 2: Stroke volume is an important indicator of
Answer: SV is an important indicator of how efficiently the heart can meet the body's demands for adequate
perfusion.
Question 3: When HR increases, Stroke volume (SV)
Answer: When heart rate increases, stroke volume tends to DECREASE due to the ventricles pumping
faster than they can fill Vice versa: A decreased heart rate allows for the ventricles to fill up more leading
to an increased stroke volume
Question 4: S/S of Decreased Stroke Volume
Answer: Dizziness/Lightheaded Cool Pale Poor/delayed cap refill
Question 5: Fill in the blanks: CO = x
Answer: CO = HR x SV
Question 6: What are the 3 components of SV
Answer: Preload Afterload Contractility
Question 7: Define Preload
Answer: How much blood we have to eject Th stretch of the ventricles
Question 8: What conditions increase preload
Answer: Hypervolemia Heart failure Regurgitation of cardiac valves
Question 9: Define afterload
Answer: How much force needed to get blood out of the ventricles and in the vessels.
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, Question 10: Conditions that increase afterload
Answer: HTN Vasoconstriction
Question 11: Conditions that decrease afterload
Answer: Hypotension Vasodilation
Question 12: Define contractility
Answer: Strength of the heart pumping muscle.
Question 13: What conditions impact heart contractility
Answer: Heart failure electrolyte disturbances
Question 14: What drug has an effect on one or more of the stroke volume components
Answer: Cardiac meds can affect one or more of the components: preload, afterload, contractility
Question 15: SA node conducts at what speed
Answer: 60-100 bpm
Question 16: Describe the conduction pathway of the heart
Answer: SA AV Bundle of HIS Purkinje Fibers
Question 17: T or F: If the SA node fails, the AV node takes over, and so on
Answer: True
Question 18: The AV node conducts at what speed
Answer: 40-60 bpm
Question 19: The purkinje fibers conducts at what speed
Answer: 20-40 bpm
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Question 1: What is stroke volume?
Answer: The volume that leaves the left ventricle per pump.
Question 2: Stroke volume is an important indicator of
Answer: SV is an important indicator of how efficiently the heart can meet the body's demands for adequate
perfusion.
Question 3: When HR increases, Stroke volume (SV)
Answer: When heart rate increases, stroke volume tends to DECREASE due to the ventricles pumping
faster than they can fill Vice versa: A decreased heart rate allows for the ventricles to fill up more leading
to an increased stroke volume
Question 4: S/S of Decreased Stroke Volume
Answer: Dizziness/Lightheaded Cool Pale Poor/delayed cap refill
Question 5: Fill in the blanks: CO = x
Answer: CO = HR x SV
Question 6: What are the 3 components of SV
Answer: Preload Afterload Contractility
Question 7: Define Preload
Answer: How much blood we have to eject Th stretch of the ventricles
Question 8: What conditions increase preload
Answer: Hypervolemia Heart failure Regurgitation of cardiac valves
Question 9: Define afterload
Answer: How much force needed to get blood out of the ventricles and in the vessels.
Page 1
, Question 10: Conditions that increase afterload
Answer: HTN Vasoconstriction
Question 11: Conditions that decrease afterload
Answer: Hypotension Vasodilation
Question 12: Define contractility
Answer: Strength of the heart pumping muscle.
Question 13: What conditions impact heart contractility
Answer: Heart failure electrolyte disturbances
Question 14: What drug has an effect on one or more of the stroke volume components
Answer: Cardiac meds can affect one or more of the components: preload, afterload, contractility
Question 15: SA node conducts at what speed
Answer: 60-100 bpm
Question 16: Describe the conduction pathway of the heart
Answer: SA AV Bundle of HIS Purkinje Fibers
Question 17: T or F: If the SA node fails, the AV node takes over, and so on
Answer: True
Question 18: The AV node conducts at what speed
Answer: 40-60 bpm
Question 19: The purkinje fibers conducts at what speed
Answer: 20-40 bpm
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