ECG Exam 4 Cardiac Dysrhythmias Questions & Answers 2026 |
High-Yield Review | Graded A+
1. If a patient presents with symptoms of bradycardia and is diagnosed with sick
sinus syndrome, what would be the most appropriate initial management
strategy?
Administration of antiarrhythmic drugs
Pacemaker insertion
Increased physical activity
Cardioversion
2. Defibrillation is used to treat which of the following rhythms
second degree AV block type 2
ventricular tachycardia with a pulse
ventricular fibrillation
SVT in the unstable patient
3. What is a common cause of sinus bradycardia?
Myocardial infarction
Increased vagal tone
Decreased heart rate
Atrial fibrillation
4. Describe the significance of premature atrial complexes in relation to overall
cardiac health.
They are a sign of healthy heart function.
, Premature atrial complexes can indicate underlying heart
conditions and may lead to more serious dysrhythmias.
They only occur in athletes.
They are always benign and require no further evaluation.
5. What is the term used to describe a dysrhythmia characterized by a
fluctuating heart rate?
Ventricular tachycardia
Sinus bradycardia
Atrial fibrillation
Sinus arrhythmia
6. What is a common symptom associated with cardiac dysrhythmias?
Nausea
Palpitations
Fever
Headache
7. If a patient presents with multifocal atrial tachycardia and a heart rate of 130
bpm, what clinical considerations should be taken into account?
Evaluate for underlying causes such as lung disease and assess the
patient's hemodynamic stability.
Focus solely on the heart rate without considering other symptoms.
Monitor the patient for anxiety only.
Administer beta-blockers immediately without further assessment.
, 8. Which of the following describes reentry?
impulses begin at the SA node skipping the AV node altogether and
immediately entering the Purkinje fibers
The impulse travels down and splits hitting both the right and left
ventricles
The impulse begins in the ventricles and travels in reverse ending at
the SA node
Impulse travels in the retrograde direction and reenters the
conduction pathway
9. Sinus tachycardia would have which characteristic?
Irregular rhythm
Inverted P waves
Rate over 100
Rate under 50
10. If a patient presents with frequent premature atrial complexes, what clinical
approach should be taken to assess potential underlying issues?
Ignore them as they are usually harmless.
Schedule a follow-up in six months without further testing.
Immediately start antiarrhythmic medication.
Conduct a thorough cardiac evaluation including an ECG and
patient history.
11. What is SVT?
Supra Ventricle Tap
High-Yield Review | Graded A+
1. If a patient presents with symptoms of bradycardia and is diagnosed with sick
sinus syndrome, what would be the most appropriate initial management
strategy?
Administration of antiarrhythmic drugs
Pacemaker insertion
Increased physical activity
Cardioversion
2. Defibrillation is used to treat which of the following rhythms
second degree AV block type 2
ventricular tachycardia with a pulse
ventricular fibrillation
SVT in the unstable patient
3. What is a common cause of sinus bradycardia?
Myocardial infarction
Increased vagal tone
Decreased heart rate
Atrial fibrillation
4. Describe the significance of premature atrial complexes in relation to overall
cardiac health.
They are a sign of healthy heart function.
, Premature atrial complexes can indicate underlying heart
conditions and may lead to more serious dysrhythmias.
They only occur in athletes.
They are always benign and require no further evaluation.
5. What is the term used to describe a dysrhythmia characterized by a
fluctuating heart rate?
Ventricular tachycardia
Sinus bradycardia
Atrial fibrillation
Sinus arrhythmia
6. What is a common symptom associated with cardiac dysrhythmias?
Nausea
Palpitations
Fever
Headache
7. If a patient presents with multifocal atrial tachycardia and a heart rate of 130
bpm, what clinical considerations should be taken into account?
Evaluate for underlying causes such as lung disease and assess the
patient's hemodynamic stability.
Focus solely on the heart rate without considering other symptoms.
Monitor the patient for anxiety only.
Administer beta-blockers immediately without further assessment.
, 8. Which of the following describes reentry?
impulses begin at the SA node skipping the AV node altogether and
immediately entering the Purkinje fibers
The impulse travels down and splits hitting both the right and left
ventricles
The impulse begins in the ventricles and travels in reverse ending at
the SA node
Impulse travels in the retrograde direction and reenters the
conduction pathway
9. Sinus tachycardia would have which characteristic?
Irregular rhythm
Inverted P waves
Rate over 100
Rate under 50
10. If a patient presents with frequent premature atrial complexes, what clinical
approach should be taken to assess potential underlying issues?
Ignore them as they are usually harmless.
Schedule a follow-up in six months without further testing.
Immediately start antiarrhythmic medication.
Conduct a thorough cardiac evaluation including an ECG and
patient history.
11. What is SVT?
Supra Ventricle Tap
