ECHELON EXAM SCRIPT 2025/2026 QUESTIONS AND
ANSWERS GRADED A++
✔✔Which lead is helpful in monitoring atrial rhythms and hemiblocks? - ✔✔Lead I
✔✔What is the normal measurement of a QRS complex? - ✔✔0.04-0.10
✔✔What are EKG artifacts? - ✔✔false cardiac waveforms
✔✔What is the first step in preparing a pt for an EKG? - ✔✔reassuring the pt and
maintaining privacy
✔✔What are the factors that impact afterload? - ✔✔arterial contractility, pressure, and
resistance
✔✔What is released when the parasympathetic nerve fibers are stimulated? -
✔✔acetylcholine
✔✔Which lead is helpful in assessing bundle branch defects and confirming pacemaker
wire placement? - ✔✔MCL1
✔✔Normal Sinus rhythm has a HR of - ✔✔60-100
✔✔Afib, Aflutter, and ____________ are examples of SVT - ✔✔junctional tachycardia
✔✔What rhythm shows a normal rate, normal QRS and PRI durations, and an absent
beat or beats? - ✔✔sinus pause
✔✔What wave might not be visible if the pt presents w/ sinus tachycardia? - ✔✔t wave
✔✔In sinus arrhythmia, which interval remains regular - ✔✔PRI
✔✔What is the most common type of rhythm in SVT? - ✔✔paroxysmal SVT
✔✔You would not see a normal _______________ interval on an EKG strip with SVT. -
✔✔PR
✔✔When you have a regular atrial and ventricular rhythm and a normal QRS and PRI
and the atrial and ventricular rate is between 100-150 bpm, this rhythm would be ID'd as
- ✔✔sinus tachycardia
ANSWERS GRADED A++
✔✔Which lead is helpful in monitoring atrial rhythms and hemiblocks? - ✔✔Lead I
✔✔What is the normal measurement of a QRS complex? - ✔✔0.04-0.10
✔✔What are EKG artifacts? - ✔✔false cardiac waveforms
✔✔What is the first step in preparing a pt for an EKG? - ✔✔reassuring the pt and
maintaining privacy
✔✔What are the factors that impact afterload? - ✔✔arterial contractility, pressure, and
resistance
✔✔What is released when the parasympathetic nerve fibers are stimulated? -
✔✔acetylcholine
✔✔Which lead is helpful in assessing bundle branch defects and confirming pacemaker
wire placement? - ✔✔MCL1
✔✔Normal Sinus rhythm has a HR of - ✔✔60-100
✔✔Afib, Aflutter, and ____________ are examples of SVT - ✔✔junctional tachycardia
✔✔What rhythm shows a normal rate, normal QRS and PRI durations, and an absent
beat or beats? - ✔✔sinus pause
✔✔What wave might not be visible if the pt presents w/ sinus tachycardia? - ✔✔t wave
✔✔In sinus arrhythmia, which interval remains regular - ✔✔PRI
✔✔What is the most common type of rhythm in SVT? - ✔✔paroxysmal SVT
✔✔You would not see a normal _______________ interval on an EKG strip with SVT. -
✔✔PR
✔✔When you have a regular atrial and ventricular rhythm and a normal QRS and PRI
and the atrial and ventricular rate is between 100-150 bpm, this rhythm would be ID'd as
- ✔✔sinus tachycardia
