ECHELON PT 2 RHYTHMS EXAM
QUESTIONS & DETAILED ANSWERS
ALL PASSED
2nd degree block type II - Correct Answer ✔✔ 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?
The ventricles are being stimulated during the relative refractory period - Correct
Answer ✔✔ Why is the R-on-T premature ventricular complex (PVC) of major concern?
B. Multifocal premature ventricular complexes - Correct Answer ✔✔ 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. 30 seconds - Correct Answer ✔✔ What period of time defines a sustained ventricular
tachycardia?
A. 2 seconds
B. 30 seconds
C. 120 seconds
D. 300 minutes
A. 2nd degree heart block type II - Correct Answer ✔✔ 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)
B. 2nd degree heart block type II - Correct Answer ✔✔ 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)
QUESTIONS & DETAILED ANSWERS
ALL PASSED
2nd degree block type II - Correct Answer ✔✔ 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?
The ventricles are being stimulated during the relative refractory period - Correct
Answer ✔✔ Why is the R-on-T premature ventricular complex (PVC) of major concern?
B. Multifocal premature ventricular complexes - Correct Answer ✔✔ 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. 30 seconds - Correct Answer ✔✔ What period of time defines a sustained ventricular
tachycardia?
A. 2 seconds
B. 30 seconds
C. 120 seconds
D. 300 minutes
A. 2nd degree heart block type II - Correct Answer ✔✔ 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)
B. 2nd degree heart block type II - Correct Answer ✔✔ 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)
