ECG Workout
Exercises in Arrhythmia Interpretation
8th Edition
Author(s)Jane Huff
,TEST BANK
Table of Contents — ECG Workout: Exercises in Arrhythmia Interpretation, 8th Edition
1. Anatomy and Physiology of the Heart
2. Electrophysiology
3. Waveforms, Complexes, Intervals, and Segments
4. Cardiac Monitors
5. Analyzing a Rhythm Strip
6. Sinus Rhythms
7. Atrial Rhythms
8. Junctional Rhythms and AV Blocks
9. Ventricular Rhythms and Bundle-Branch Block
10. Pacemakers
11. Posttes
Question 1 A cardiac monitor tracing shows a normal sinus
rhythm at 72 bpm. Which structure is responsible for
preventing backflow of blood from the left ventricle into the
left atrium during ventricular systole?
A. Pulmonic valve B. Tricuspid valve C. Mitral valve D. Aortic
valve
Correct Answer: C
,Rationale: During ventricular systole, the mitral valve closes to
prevent blood from flowing backward from the left ventricle
into the left atrium. The tricuspid valve performs the same
function on the right side of the heart. The aortic and pulmonic
valves prevent backflow from the great arteries into the
ventricles during diastole.
Source: ECG Workout: Exercises in Arrhythmia Interpretation,
8th Edition – Chapter 1
Question 2 A patient’s ECG demonstrates a regular rhythm at
88 bpm with normal P waves preceding each QRS complex.
Blood ejected from the right ventricle next enters which
structure?
A. Aorta B. Pulmonary artery C. Left atrium D. Superior vena
cava
Correct Answer: B
Rationale: Blood flows from the right ventricle through the
pulmonic valve into the pulmonary artery, which carries
deoxygenated blood to the lungs. The aorta receives blood
from the left ventricle. The left atrium receives oxygenated
blood from the pulmonary veins.
Source: ECG Workout: Exercises in Arrhythmia Interpretation,
8th Edition – Chapter 1
Question 3 An ECG strip shows normal sinus rhythm. Which
sequence correctly describes blood flow through the heart after
blood enters the right atrium?
, A. Right atrium → pulmonic valve → right ventricle →
pulmonary artery B. Right atrium → tricuspid valve → right
ventricle → pulmonic valve C. Right atrium → mitral valve →
right ventricle → aorta D. Right atrium → tricuspid valve → left
ventricle → pulmonary artery
Correct Answer: B
Rationale: Normal blood flow from the right atrium proceeds
through the tricuspid valve into the right ventricle and then
through the pulmonic valve before entering the pulmonary
artery. The other options incorrectly sequence chambers or
valves.
Source: ECG Workout: Exercises in Arrhythmia Interpretation,
8th Edition – Chapter 1
Question 4 A patient’s ECG shows sinus tachycardia at 110
bpm. Which chamber generates the greatest pressure during
systole to maintain systemic circulation?
A. Right atrium B. Right ventricle C. Left atrium D. Left ventricle
Correct Answer: D
Rationale: The left ventricle is the main pumping chamber for
systemic circulation and must generate the highest pressure to
propel blood throughout the body. The right ventricle pumps
blood only to the pulmonary circulation, which requires much
lower pressure.
Exercises in Arrhythmia Interpretation
8th Edition
Author(s)Jane Huff
,TEST BANK
Table of Contents — ECG Workout: Exercises in Arrhythmia Interpretation, 8th Edition
1. Anatomy and Physiology of the Heart
2. Electrophysiology
3. Waveforms, Complexes, Intervals, and Segments
4. Cardiac Monitors
5. Analyzing a Rhythm Strip
6. Sinus Rhythms
7. Atrial Rhythms
8. Junctional Rhythms and AV Blocks
9. Ventricular Rhythms and Bundle-Branch Block
10. Pacemakers
11. Posttes
Question 1 A cardiac monitor tracing shows a normal sinus
rhythm at 72 bpm. Which structure is responsible for
preventing backflow of blood from the left ventricle into the
left atrium during ventricular systole?
A. Pulmonic valve B. Tricuspid valve C. Mitral valve D. Aortic
valve
Correct Answer: C
,Rationale: During ventricular systole, the mitral valve closes to
prevent blood from flowing backward from the left ventricle
into the left atrium. The tricuspid valve performs the same
function on the right side of the heart. The aortic and pulmonic
valves prevent backflow from the great arteries into the
ventricles during diastole.
Source: ECG Workout: Exercises in Arrhythmia Interpretation,
8th Edition – Chapter 1
Question 2 A patient’s ECG demonstrates a regular rhythm at
88 bpm with normal P waves preceding each QRS complex.
Blood ejected from the right ventricle next enters which
structure?
A. Aorta B. Pulmonary artery C. Left atrium D. Superior vena
cava
Correct Answer: B
Rationale: Blood flows from the right ventricle through the
pulmonic valve into the pulmonary artery, which carries
deoxygenated blood to the lungs. The aorta receives blood
from the left ventricle. The left atrium receives oxygenated
blood from the pulmonary veins.
Source: ECG Workout: Exercises in Arrhythmia Interpretation,
8th Edition – Chapter 1
Question 3 An ECG strip shows normal sinus rhythm. Which
sequence correctly describes blood flow through the heart after
blood enters the right atrium?
, A. Right atrium → pulmonic valve → right ventricle →
pulmonary artery B. Right atrium → tricuspid valve → right
ventricle → pulmonic valve C. Right atrium → mitral valve →
right ventricle → aorta D. Right atrium → tricuspid valve → left
ventricle → pulmonary artery
Correct Answer: B
Rationale: Normal blood flow from the right atrium proceeds
through the tricuspid valve into the right ventricle and then
through the pulmonic valve before entering the pulmonary
artery. The other options incorrectly sequence chambers or
valves.
Source: ECG Workout: Exercises in Arrhythmia Interpretation,
8th Edition – Chapter 1
Question 4 A patient’s ECG shows sinus tachycardia at 110
bpm. Which chamber generates the greatest pressure during
systole to maintain systemic circulation?
A. Right atrium B. Right ventricle C. Left atrium D. Left ventricle
Correct Answer: D
Rationale: The left ventricle is the main pumping chamber for
systemic circulation and must generate the highest pressure to
propel blood throughout the body. The right ventricle pumps
blood only to the pulmonary circulation, which requires much
lower pressure.
