ECG Cardiac Rhythm Questions & Answers 2026 | High-
Yield Review | Graded A+
1. What is the heart rate range that defines sinus bradycardia?
80 to 120 beats per minute
More than 100 beats per minute
Less than 60 beats per minute
60 to 100 beats per minute
2. What is the characteristic rhythm pattern associated with atrial flutter?
Sawtooth pattern
Regular rhythm
Irregularly irregular
Flat line
3. Sinus Bradycardia is any heart rate below?
- 20 bpm
- 60 bpm
- 12 bpm
- 100 bpm
4. What is the primary treatment for torsades de pointes in a patient with a
pulse?
Amiodarone
Adenosine
, Magnesium sulfate
Lidocaine
5. All of the following can be used to treat stable ventricular tachycardia with a
pulse except:
Amiodarone
Epinephrine
Lidocaine
Procainamide
6. Describe the significance of identifying supraventricular tachycardia (SVT) in
a clinical setting.
Identifying SVT helps in diagnosing heart failure.
Identifying SVT is crucial as it can lead to rapid heart rates that may
compromise cardiac output and require immediate treatment.
Identifying SVT is not important since it is usually benign.
Identifying SVT is only necessary for patients with a history of heart
disease.
7. Monomorphic ventricular tachycardia: Answers:
Presents with wide QRS complexes of a common shape.
Is treated as ventricular fibrillation if a pulse is present.
Is often irregular with occasional nonconducted P waves.
Is characterized by QRS complexes that vary in size.
8. If a patient presents with symptoms of dizziness and fainting, and an ECG
shows a high-grade 2nd degree AV block, what would be the most
, appropriate immediate treatment?
Temporary pacing
Administration of beta-blockers
Defibrillation
Increased fluid intake
9. Describe the significance of identifying 2nd degree AV block type 2 (Mobitz
II) in a clinical setting.
Mobitz II is easily reversible with medication.
Mobitz II indicates a healthy heart rhythm.
Identifying Mobitz II is crucial because it can lead to complete heart
block and may require intervention.
Mobitz II is benign and does not require any treatment.
10. A normal QT interval is less than ___ seconds.
0.40
0.20
0.30
0.60
11. Describe the significance of identifying torsades de pointes in a clinical
setting.
Identifying torsades de pointes is mainly for research purposes.
Identifying torsades de pointes helps in determining the need for a
pacemaker.
Yield Review | Graded A+
1. What is the heart rate range that defines sinus bradycardia?
80 to 120 beats per minute
More than 100 beats per minute
Less than 60 beats per minute
60 to 100 beats per minute
2. What is the characteristic rhythm pattern associated with atrial flutter?
Sawtooth pattern
Regular rhythm
Irregularly irregular
Flat line
3. Sinus Bradycardia is any heart rate below?
- 20 bpm
- 60 bpm
- 12 bpm
- 100 bpm
4. What is the primary treatment for torsades de pointes in a patient with a
pulse?
Amiodarone
Adenosine
, Magnesium sulfate
Lidocaine
5. All of the following can be used to treat stable ventricular tachycardia with a
pulse except:
Amiodarone
Epinephrine
Lidocaine
Procainamide
6. Describe the significance of identifying supraventricular tachycardia (SVT) in
a clinical setting.
Identifying SVT helps in diagnosing heart failure.
Identifying SVT is crucial as it can lead to rapid heart rates that may
compromise cardiac output and require immediate treatment.
Identifying SVT is not important since it is usually benign.
Identifying SVT is only necessary for patients with a history of heart
disease.
7. Monomorphic ventricular tachycardia: Answers:
Presents with wide QRS complexes of a common shape.
Is treated as ventricular fibrillation if a pulse is present.
Is often irregular with occasional nonconducted P waves.
Is characterized by QRS complexes that vary in size.
8. If a patient presents with symptoms of dizziness and fainting, and an ECG
shows a high-grade 2nd degree AV block, what would be the most
, appropriate immediate treatment?
Temporary pacing
Administration of beta-blockers
Defibrillation
Increased fluid intake
9. Describe the significance of identifying 2nd degree AV block type 2 (Mobitz
II) in a clinical setting.
Mobitz II is easily reversible with medication.
Mobitz II indicates a healthy heart rhythm.
Identifying Mobitz II is crucial because it can lead to complete heart
block and may require intervention.
Mobitz II is benign and does not require any treatment.
10. A normal QT interval is less than ___ seconds.
0.40
0.20
0.30
0.60
11. Describe the significance of identifying torsades de pointes in a clinical
setting.
Identifying torsades de pointes is mainly for research purposes.
Identifying torsades de pointes helps in determining the need for a
pacemaker.
