ECG Workout
Exercises in Arrhythmia Interpretation
8th Edition
Author(s)Jane Huff
,Question 1
A nurse is reviewing the function of cardiac valves with a
nursing student. Which valve prevents backflow of blood from
the right ventricle into the right atrium during ventricular
contraction?
A. Mitral valve
B. Aortic valve
C. Pulmonic valve
D. Tricuspid valve
Correct Answer: D
Rationale:
The tricuspid valve lies between the right atrium and right
ventricle and prevents backflow of blood into the right atrium
during ventricular systole. The mitral valve separates the left
atrium and left ventricle. The aortic and pulmonic valves are
semilunar valves located at ventricular outflow tracts.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 2
A nursing student is tracing the pathway of blood through the
heart. Which structure receives oxygenated blood returning
from the lungs?
,A. Right atrium
B. Left atrium
C. Right ventricle
D. Left ventricle
Correct Answer: B
Rationale:
Oxygenated blood returns from the lungs through the
pulmonary veins into the left atrium. The right atrium receives
deoxygenated blood from systemic circulation via the vena
cava.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 3
A nurse is teaching about blood flow through the pulmonary
circulation. Which sequence is correct?
A. Right ventricle → pulmonary artery → lungs → pulmonary
veins → left atrium
B. Left ventricle → pulmonary veins → lungs → pulmonary
artery → right atrium
C. Right atrium → aorta → lungs → vena cava → left ventricle
D. Left atrium → pulmonary artery → lungs → pulmonary veins
→ right ventricle
Correct Answer: A
, Rationale:
Blood leaves the right ventricle through the pulmonary artery,
travels to the lungs for oxygenation, returns through the
pulmonary veins, and enters the left atrium.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 4
The nurse explains that the mitral valve is located between
which chambers?
A. Right atrium and right ventricle
B. Left atrium and left ventricle
C. Right ventricle and pulmonary artery
D. Left ventricle and aorta
Correct Answer: B
Rationale:
The mitral valve, also called the bicuspid valve, separates the
left atrium from the left ventricle and prevents backward blood
flow during ventricular contraction.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Exercises in Arrhythmia Interpretation
8th Edition
Author(s)Jane Huff
,Question 1
A nurse is reviewing the function of cardiac valves with a
nursing student. Which valve prevents backflow of blood from
the right ventricle into the right atrium during ventricular
contraction?
A. Mitral valve
B. Aortic valve
C. Pulmonic valve
D. Tricuspid valve
Correct Answer: D
Rationale:
The tricuspid valve lies between the right atrium and right
ventricle and prevents backflow of blood into the right atrium
during ventricular systole. The mitral valve separates the left
atrium and left ventricle. The aortic and pulmonic valves are
semilunar valves located at ventricular outflow tracts.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 2
A nursing student is tracing the pathway of blood through the
heart. Which structure receives oxygenated blood returning
from the lungs?
,A. Right atrium
B. Left atrium
C. Right ventricle
D. Left ventricle
Correct Answer: B
Rationale:
Oxygenated blood returns from the lungs through the
pulmonary veins into the left atrium. The right atrium receives
deoxygenated blood from systemic circulation via the vena
cava.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 3
A nurse is teaching about blood flow through the pulmonary
circulation. Which sequence is correct?
A. Right ventricle → pulmonary artery → lungs → pulmonary
veins → left atrium
B. Left ventricle → pulmonary veins → lungs → pulmonary
artery → right atrium
C. Right atrium → aorta → lungs → vena cava → left ventricle
D. Left atrium → pulmonary artery → lungs → pulmonary veins
→ right ventricle
Correct Answer: A
, Rationale:
Blood leaves the right ventricle through the pulmonary artery,
travels to the lungs for oxygenation, returns through the
pulmonary veins, and enters the left atrium.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
Question 4
The nurse explains that the mitral valve is located between
which chambers?
A. Right atrium and right ventricle
B. Left atrium and left ventricle
C. Right ventricle and pulmonary artery
D. Left ventricle and aorta
Correct Answer: B
Rationale:
The mitral valve, also called the bicuspid valve, separates the
left atrium from the left ventricle and prevents backward blood
flow during ventricular contraction.
Source:
ECG Workout: Exercises in Arrhythmia Interpretation, 8th
Edition – Chapter 1
