Exercises in Arrhythmia Interpretation
8th Edition
Author(s)Jane Huff
,Question 1
A student reviewing cardiac anatomy identifies the valve
located between the right atrium and right ventricle. Which
valve is this?
A. Mitral valve
B. Aortic valve
C. Tricuspid valve
D. Pulmonic valve
Correct Answer: C
Rationale:
The tricuspid valve separates the right atrium from the right
ventricle and prevents backflow of blood into the right atrium
during ventricular contraction. The mitral valve is located on
the left side of the heart, while the aortic and pulmonic valves
are semilunar valves.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation – Chapter
1
,Question 2
Blood returning from the systemic circulation enters which
chamber of the heart first?
A. Left atrium
B. Left ventricle
C. Right atrium
D. Right ventricle
Correct Answer: C
Rationale:
Deoxygenated blood from the systemic circulation returns to
the right atrium through the superior and inferior vena cava.
The blood then flows through the tricuspid valve into the right
ventricle.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation – Chapter
1
Question 3
A nurse explains that oxygenated blood leaves the left ventricle
through which structure?
A. Pulmonary artery
B. Superior vena cava
C. Aorta
D. Pulmonary vein
, Correct Answer: C
Rationale:
The left ventricle pumps oxygenated blood through the aortic
valve into the aorta for systemic circulation. The pulmonary
artery carries deoxygenated blood to the lungs, and pulmonary
veins return oxygenated blood to the left atrium.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation – Chapter
1
Question 4
Which structure prevents backflow of blood from the left
ventricle into the left atrium?
A. Tricuspid valve
B. Pulmonic valve
C. Mitral valve
D. Aortic valve
Correct Answer: C
Rationale:
The mitral valve lies between the left atrium and left ventricle
and prevents regurgitation of blood during ventricular
contraction. The tricuspid valve is on the right side of the heart.