1. Sinus arrhythmia is a normal respiratory variant. True or False.
2. A regular rhythm with a heart rate of 125 BPM with identical P waves occurring before each of the QRS complexes is:
A. Sinus bradycardia
B. Normal sinus rhythm
C. Focal atrial tachycardia
D. Atrial flutter
E. Sinus tachycardia
3. If an entire complex is missing from a rhythm strip but the underlying rhythm is unchanged and maintains the same P-P or R-R interval (excluding the dropped beat), it is known as:
A. Sinus bradycardia
B. Atrial escape beat
C. Sinus pause
D. Sinoatrial block
E. Junctional escape beat
4. An irregularly irregular rhythm of 65 BPM with at least three varying P-wave morphologies and PR intervals is known as:
A. Atrial fibrillation
B. Wandering atrial tachycardia
C. Multifocal atrial tachycardia
D. Atrial flutter
E. Accelerated idioventricular rhythm
5. In atrial flutter, the flutter wave usually occurs at a rate of 250–350 BPM. True or False.
6. Atrial fibrillation is an irregularly irregular rhythm with no discernible P waves in any lead. True or False.
7. An irregularly irregular rhythm at 195 BPM with no discernible P waves is known as:
A. Atrial fibrillation with a rapid ventricular response
B. Multifocal atrial tachycardia
C. Atrial flutter
D. Focal atrial tachycardia
E. Accelerated idioventricular rhythm
8. An accelerated junctional rhythm is a junctional rhythm over 100 BPM. True or False.
9. An idioventricular rhythm is caused by a ventricular focus acting as the primary pacemaker. The usual rate is in the range of 20–40 BPM. True or False.
10. Ventricular tachycardia is associated with:
A. Capture beats
B. Fusion beats
C. Both A and B
D. None of the above
11. A wide-complex tachycardia should always be considered and treated as ventricular tachycardia until proven otherwise. True or False.
12. Ventricular fibrillation has discernible complexes on close examination of the strip. True or False.
13. A grouped rhythm with PR intervals that prolong until a beat is dropped is known as:
A. Wandering atrial pacemaker
B. First-degree heart block
C. Mobitz I second-degree heart block, or Wenckbach
D. Mobitz II second-degree heart block
E. Third-degree heart block
14. A grouped rhythm with dropped QRS complexes occurring either regularly or variably is known as:
A. Wandering atrial pacemaker
B. First-degree heart block
C. Mobitz I second-degree heart block, or Wenckebach
D. Mobitz II second-degree heart block
E. Third-degree heart block
15. A rhythm with dissociated atrial and ventricular pacemakers, in which the atrial beat is faster than the ventricular rate, is known as:
A. Wandering atrial pacemaker
B. First-degree heart block
C. Mobitz I second-degree heart block, or Wenckebach
D. Mobitz II second-degree heart block
E. Third-degree heart block