ECG strip that shows regular atrial rhythm, an atrial rate greater than ventricular rate (some
QRS complexes are dropped) and a constant PR interval when the atrial and ventricular
complexes appear together would most likely be identified as what rhythm?
→ ~~> 2nd degree block type II
Wh...
Best Grades | Must Pass | Latest Update | Correct Answers | 2024/2025
Echelon Pt 2 Rhythms Questions and Correct
Answers | Latest Update
ECG strip that shows regular atrial rhythm, an atrial rate greater than ventricular rate (some
QRS complexes are dropped) and a constant PR interval when the atrial and ventricular
complexes appear together would most likely be identified as what rhythm?
→ ~~> 2nd degree block type II
Why is the R-on-T premature ventricular complex (PVC) of major concern?
→ ~~> The ventricles are being stimulated during the relative refractory period
What are premature ventricular complexes (PVCs) that arise from several irritable sites
called?
A. Unifocal premature ventricular complexes
B. Multifocal premature ventricular complexes
C. Premature ventricular complex couplet
D. Trigeminal premature ventricular complexes
→ ~~> B. Multifocal premature ventricular complexes
What period of time defines a sustained ventricular tachycardia?
A. 2 seconds
B. 30 seconds
C. 120 seconds
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, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/2025
D. 300 minutes
→ ~~> B. 30 seconds
The P wave is never hidden in which one of the following rhythms?
A. 2nd degree heart block type II
B. 3rd degree heart block
C. Junctional
D. Supraventricular tachycardia (SVT)
→ ~~> A. 2nd degree heart block type II
What rhythm is characterized by a conduction block between the atria and ventricles resulting
in some nonconducted P waves (QRS complex drops) but fixed PR intervals when the P wave
and QRS complex appear together?
A. Bundle branch block (BBB)
B. 2nd degree heart block type II
C. 3rd degree heart block at bundle branch block level
D. Idioventricular rhythm (IVR)
→ ~~> B. 2nd degree heart block type II
Which is a key to differentiating 2nd degree block type I from type II?
A. PR intervals
B. P waves
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