ECHELON EXAM QUESTIONS AND
ANSWERS
When the sympathetic nerve fibers are stimulated, the heart rate is ____________. -
ANS elevated
Electrode location sites should be rotated _______________ or when the pt is sweaty or has
had a bath. - ANS q24h
What method is used to calculate atrial and ventricular rate for irregular rhythms? - ANS 6
second rule
T or F: The qrs complex in MCL1 can be negative and still be normal. - ANS T
A wave form is a movement ______________ the isoelectric line in either a positive or negative
direction. - ANS away from
Lead II is helpful in detecting.... - ANS sinus node and atrial arrhythmias
What affects preload: volume in the veins, pressure in the arteries or ventricles, or volume of
blood in the ventricles? - ANS volume in the veins
Along with Lead II, lead III is most helpful in monitoring changes in what part of the heart? -
ANS Inferior wall MI
What are the best areas to place electrodes? - ANS on soft tissue
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, The ekg produces an upright pattern on the paper in response to electrical activity in the heart
flowing towards a - ANS positive electrode
The QT interval represents - ANS total ventricular activity
What are the AV valves? - ANS mitral and tricuspid
What part of the EKG reflects the refractory period? - ANS The QRS to the peak of the T wave
5 large EKG strip boxes totals how much time? - ANS 1 second
The PRI is considered abnormal or prolonged if it is - ANS >0.20 secs
What is the most common cause for an alarm sounding? - ANS a loose lead wire
Which lead is the most useful for routine monitoring and monitoring the sinus node? -
ANS Lead II
Which lead is helpful in monitoring atrial rhythms and hemiblocks? - ANS Lead I
What is the normal measurement of a QRS complex? - ANS 0.04-0.10
What are EKG artifacts? - ANS false cardiac waveforms
What is the first step in preparing a pt for an EKG? - ANS reassuring the pt and maintaining
privacy
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 2
ANSWERS
When the sympathetic nerve fibers are stimulated, the heart rate is ____________. -
ANS elevated
Electrode location sites should be rotated _______________ or when the pt is sweaty or has
had a bath. - ANS q24h
What method is used to calculate atrial and ventricular rate for irregular rhythms? - ANS 6
second rule
T or F: The qrs complex in MCL1 can be negative and still be normal. - ANS T
A wave form is a movement ______________ the isoelectric line in either a positive or negative
direction. - ANS away from
Lead II is helpful in detecting.... - ANS sinus node and atrial arrhythmias
What affects preload: volume in the veins, pressure in the arteries or ventricles, or volume of
blood in the ventricles? - ANS volume in the veins
Along with Lead II, lead III is most helpful in monitoring changes in what part of the heart? -
ANS Inferior wall MI
What are the best areas to place electrodes? - ANS on soft tissue
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 1
, The ekg produces an upright pattern on the paper in response to electrical activity in the heart
flowing towards a - ANS positive electrode
The QT interval represents - ANS total ventricular activity
What are the AV valves? - ANS mitral and tricuspid
What part of the EKG reflects the refractory period? - ANS The QRS to the peak of the T wave
5 large EKG strip boxes totals how much time? - ANS 1 second
The PRI is considered abnormal or prolonged if it is - ANS >0.20 secs
What is the most common cause for an alarm sounding? - ANS a loose lead wire
Which lead is the most useful for routine monitoring and monitoring the sinus node? -
ANS Lead II
Which lead is helpful in monitoring atrial rhythms and hemiblocks? - ANS Lead I
What is the normal measurement of a QRS complex? - ANS 0.04-0.10
What are EKG artifacts? - ANS false cardiac waveforms
What is the first step in preparing a pt for an EKG? - ANS reassuring the pt and maintaining
privacy
COPYRIGHT © 2025 THESTAR ALL RIGHTS RESERVED 2
