Quiz: Cardiac Vascular Nursing Exam! Trivia
Quiz: cardiac vascular nursing exam! The cardiovascular system has the sole purpose of ensuring that blood is transported throughout the body and help in the removal of waste from the body. The questions are perfectly designed for nurses to refresh their understanding when it comes to some of the things they should know before going to the field. How about you give it a shot and see how well you do.
- 1.
Pulmonary circulation has lower pressure and lower resistance when compared to systemic circulation
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Only needs to pump to lungsRate this question:
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- 2.
The plateau of a cardiac action potential is due to
- A.
Inward flow of calcium
- B.
Outward flow of calcium
- C.
Inward flow of potassium
- D.
Outward flow of potassium
Correct Answer
A. Inward flow of calcium -
- 3.
Action potentials in the heart follow which of the following paths1. AV node ---> SA node ---> Bundle of HIS ----> Purkinje fibers ------------2. Purkinje fibers ---> Bundle of HIS ---> SA node ---> AV node -------------3. SA node --> AV node --> Bundle of HIS ---> Purkinje fibers ---------------4. SA node --> Bundle of HIS --> AV node ---> Purkinje fibers ----------------
- A.
1
- B.
2
- C.
3
- D.
4
Correct Answer
C. 3 -
- 4.
Atrial depolarization begins at the
- A.
SA node
- B.
AV node
- C.
Bundle of HIS
- D.
Purkinje Fibers
Correct Answer
A. SA node -
- 5.
Out of the 6 precordial chest lead positions, only one of them is on the right side of the heart.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Slide 20Rate this question:
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- 6.
Conduction velocity in the heart
- A.
Is fastest in AV node
- B.
Is faster in the Bundle of His than in the Purkinje Fibers
- C.
Is faster in the AV node than in the Bundle of His
- D.
Is faster in the Purkinje fiber system than in the AV node
Correct Answer
D. Is faster in the Purkinje fiber system than in the AV nodeExplanation
Conduction velocity slows at the AV node (0.5 m/sec), then speeds up in the Bundle of His (2 m/sec), then speeds up again in the Purkinje fibers to (4 m/sec)Rate this question:
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- 7.
A cardiac ECG wave segment is the same as an interval
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Specifics are unknown....just know they are not the same thing.Rate this question:
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- 8.
Ventricular depolarization spreads from ________ to _________ and would be located at the _____ segment of an ECG/EKG
- A.
Epicardial surface, endocardial surface, QRS complex
- B.
Endocardial surface, epicardial surface, QRS complex
- C.
Endocardial surface, epicardial surface, PR interval
- D.
Epicardial surface, endocardial surface, PR interval
Correct Answer
B. Endocardial surface, epicardial surface, QRS complexExplanation
The heart depolarization occurs from inside to out-- from the endocardial surface (inside of the heart), through the wall, then to the epicardial surface (outer surface of the heart). REpolarization occurs in the opposite direction (epicardial --> endocardial)Rate this question:
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- 9.
A heart attack would best be detected at the _____ portion on an ECG
- A.
QRS complex
- B.
PR interval
- C.
ST segment
- D.
P segment
Correct Answer
C. ST segmentExplanation
Elevation of the ST segment is often indicative of heart injury or ischemia (inadequate blood supply to the heart). In a heart attack, the ST segment will lower over time closer to physiological norms.Rate this question:
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- 10.
During isovolumetric contraction and isovolumetric relaxation
- A.
All valves are closed
- B.
All valves are open
- C.
AV valves are closed but semilunar are open
- D.
AV valves are open but semilunar are closed
Correct Answer
A. All valves are closedExplanation
Isovolumetric - No change in volume, all valves must be closed.Rate this question:
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- 11.
The first heart sound (Lub) corresponds to
- A.
Opening of the AV valves
- B.
Closure of the Semilunar valves
- C.
Closure of the AV valves
- D.
Opening of the Semilunar valves
Correct Answer
C. Closure of the AV valvesExplanation
No sound is made with the opening of the AV valves, only the closing of them.Rate this question:
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- 12.
A patients end diastolic volume (EDV) is 120 ml and their end systolic volume is 50 ml, what is the patients stroke volume (SV) and cardiac output (CO) if they have a heart rate of 65 bpm
- A.
SV = 70 ml, CO = 4.55 L/min
- B.
SV = 70ml, CO = 45.5 L/min
- C.
SV = 60 ml, CO = 6.5 L/min
- D.
SV = 50ml, CO = 3.25 L/min
Correct Answer
A. SV = 70 ml, CO = 4.55 L/minExplanation
SV = EDV - ESV = 120 - 50 = 70ml.
CO = SV x BPM (in liters) = 0.07 L x 65 BPM = 4.55 L/min........****SV is in ml, CO is in L/minRate this question:
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- 13.
If a doctor places his stethoscope at the level of the 2nd intercostal space (on both the right and left side of the sternum), what sound is he trying to hear most clearly?
- A.
Closure of the semilunar valves
- B.
Closure of the AV valves
- C.
Closure of the bicuspid valve
- D.
Opening of the semilunar valves
Correct Answer
A. Closure of the semilunar valvesExplanation
This location is ideal for hearing the closure of the semilunar valves. The closing of the semilunar valves would also be the second heart sound (dub).Rate this question:
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- 14.
The SA node's auto rhythmic rate of firing would give us a heart rate of 100 bpm. The reason the average resting heart rate is lower than this (around 72 bpm) is due to
- A.
A positive dromotropic effect
- B.
A positive chronotropic effect
- C.
Increased Parasympathetic input
- D.
Increased Sympathetic input
Correct Answer
C. Increased Parasympathetic inputExplanation
Sympathetic input and Positive chronotropic effect increase heart rate. Positive dromotropic effect increases conduction velocity. Only parasympathetic input would reduce the heart rate.Rate this question:
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- 15.
A positive dromotropic effect would
- A.
Increase conduction velocity through AV node
- B.
Decrease conduction velocity through AV node
- C.
Increase heart rate
- D.
Decrease heart rate
Correct Answer
A. Increase conduction velocity through AV nodeExplanation
Dromotropic effects are on conduction velocity, not heart rate.Rate this question:
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- 16.
Heart rate decreases as we age
- A.
True
- B.
False
Correct Answer
A. True -
- 17.
Which of the following would increase stroke volume? (Select 3)
- A.
Increased preload
- B.
Increased contractility of the heart
- C.
Increased afterload
- D.
Decreased afterload
- E.
Decreased preload
Correct Answer(s)
A. Increased preload
B. Increased contractility of the heart
D. Decreased afterloadExplanation
A higher afterload creates more pressure against the contraction of the heart resulting in a decreased stroke volume. Increased preload increases stroke volume because of the Frank-Starling Law of the heart (more muscle is stretched, the greater the force of contraction)Rate this question:
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- 18.
A lower ventricular end diastolic volume will create a greater stroke volume (all other things held constant)
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A higher ventricular end diastolic volume will create a greater stroke volume because of the increased stretching of the heart.Rate this question:
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- 19.
An increase in NE will result in
- A.
Larger ejection fraction
- B.
Smaller ejection fraction
- C.
Larger EDV (end diastolic volume)
- D.
Decreased myocardial contraction
Correct Answer
A. Larger ejection fractionExplanation
NE is a positive Inotropic factor (and is sympathetic) so it will increase heart contractility, decrease EDV (because of increased heart rate reducing the diastolic filling time), and increase stroke volume.Rate this question:
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- 20.
A heart murmur heard in systole could be (Select 2)
- A.
Aortic Stenosis
- B.
Mitral Regurgitation
- C.
Mitral Stenosis
- D.
Aortic Regurgitation
Correct Answer(s)
A. Aortic Stenosis
B. Mitral Regurgitation -
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Current Version
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Mar 22, 2022Quiz Edited by
ProProfs Editorial Team -
Sep 30, 2015Quiz Created by
Eddy Sidra
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