ECG Workout
Exercises in Arrhythmia Interpretation
8th Edition
Author(s)Jane Huff
,Question 1
An ECG monitor is attached to a patient whose cardiac cycle
depends on proper valve function. Which heart valve prevents
backflow from the left ventricle into the left atrium during
ventricular contraction?
A. Tricuspid valve
B. Pulmonic valve
C. Mitral valve
D. Aortic valve
Correct Answer: C
Rationale:
The mitral valve is located between the left atrium and left
ventricle and closes during ventricular systole to prevent
regurgitation into the left atrium. The tricuspid valve is located
on the right side of the heart. The pulmonic and aortic valves
are semilunar valves located at ventricular outflow tracts.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
,Question 2
A patient’s ECG demonstrates normal sinus rhythm. Blood
ejected from the right ventricle will next pass through which
structure?
A. Aortic valve
B. Pulmonic valve
C. Mitral valve
D. Tricuspid valve
Correct Answer: B
Rationale:
Blood leaves the right ventricle through the pulmonic valve and
enters the pulmonary artery for transport to the lungs. The
aortic valve directs blood from the left ventricle into systemic
circulation.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 3
A telemetry nurse reviews cardiac anatomy while interpreting
ECG rhythms. Which chamber of the heart receives oxygenated
blood from the lungs?
A. Right atrium
B. Right ventricle
, C. Left atrium
D. Left ventricle
Correct Answer: C
Rationale:
The left atrium receives oxygenated blood returning from the
lungs through the pulmonary veins. The right atrium receives
deoxygenated blood from systemic circulation.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 4
An ECG tracing demonstrates ventricular depolarization
followed by effective ventricular contraction. Which vessel
carries oxygen-rich blood away from the left ventricle?
A. Pulmonary artery
B. Superior vena cava
C. Inferior vena cava
D. Aorta
Correct Answer: D
Rationale:
The aorta carries oxygenated blood from the left ventricle into
systemic circulation. The pulmonary artery carries
deoxygenated blood from the right ventricle to the lungs.
Exercises in Arrhythmia Interpretation
8th Edition
Author(s)Jane Huff
,Question 1
An ECG monitor is attached to a patient whose cardiac cycle
depends on proper valve function. Which heart valve prevents
backflow from the left ventricle into the left atrium during
ventricular contraction?
A. Tricuspid valve
B. Pulmonic valve
C. Mitral valve
D. Aortic valve
Correct Answer: C
Rationale:
The mitral valve is located between the left atrium and left
ventricle and closes during ventricular systole to prevent
regurgitation into the left atrium. The tricuspid valve is located
on the right side of the heart. The pulmonic and aortic valves
are semilunar valves located at ventricular outflow tracts.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
,Question 2
A patient’s ECG demonstrates normal sinus rhythm. Blood
ejected from the right ventricle will next pass through which
structure?
A. Aortic valve
B. Pulmonic valve
C. Mitral valve
D. Tricuspid valve
Correct Answer: B
Rationale:
Blood leaves the right ventricle through the pulmonic valve and
enters the pulmonary artery for transport to the lungs. The
aortic valve directs blood from the left ventricle into systemic
circulation.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 3
A telemetry nurse reviews cardiac anatomy while interpreting
ECG rhythms. Which chamber of the heart receives oxygenated
blood from the lungs?
A. Right atrium
B. Right ventricle
, C. Left atrium
D. Left ventricle
Correct Answer: C
Rationale:
The left atrium receives oxygenated blood returning from the
lungs through the pulmonary veins. The right atrium receives
deoxygenated blood from systemic circulation.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 4
An ECG tracing demonstrates ventricular depolarization
followed by effective ventricular contraction. Which vessel
carries oxygen-rich blood away from the left ventricle?
A. Pulmonary artery
B. Superior vena cava
C. Inferior vena cava
D. Aorta
Correct Answer: D
Rationale:
The aorta carries oxygenated blood from the left ventricle into
systemic circulation. The pulmonary artery carries
deoxygenated blood from the right ventricle to the lungs.
