Exercises in Arrhythmia Interpretation
8th Edition
Author(s)Jane Huff
,Question 1
A cardiac monitoring student is reviewing the structure
responsible for preventing backflow of blood from the left
ventricle into the left atrium during ventricular contraction.
Which heart valve performs this function?
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 prevents backflow into the left atrium during
ventricular systole. The tricuspid valve separates the right
atrium and right ventricle. The pulmonic valve controls blood
flow from the right ventricle to the pulmonary artery. The
aortic valve regulates blood flow from the left ventricle into the
aorta.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation – Chapter
1
Question 2
A patient’s cardiac anatomy review identifies the valve located
,between the right atrium and right ventricle. Which valve is
being described?
A. Mitral valve
B. Tricuspid valve
C. Aortic valve
D. Pulmonic valve
Correct Answer: B
Rationale:
The tricuspid valve separates the right atrium from the right
ventricle and prevents backward blood flow during ventricular
contraction. The mitral valve is on the left side of the heart. The
aortic and pulmonic valves are semilunar valves controlling
ventricular outflow.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation – Chapter
1
Question 3
A telemetry student is tracing blood flow through the heart.
After blood leaves the right ventricle, where does it travel next?
A. Aorta
B. Left atrium
C. Pulmonary artery
D. Superior vena cava
, Correct Answer: C
Rationale:
Blood exits the right ventricle through the pulmonic valve into
the pulmonary artery for transport to the lungs. The aorta
receives blood from the left ventricle. The left atrium receives
oxygenated blood from the lungs. The superior vena cava
returns systemic venous blood to the right atrium.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation – Chapter
1
Question 4
A learner reviewing pulmonary circulation asks which chamber
receives oxygenated blood returning from the lungs. Which
chamber is correct?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Correct Answer: C
Rationale:
The left atrium receives oxygenated blood from the pulmonary
veins after gas exchange occurs in the lungs. The right atrium
receives deoxygenated systemic venous blood. The ventricles