ECHELON EXAM QUESTIONS AND ANSWERS
WITH COMPLETE SOLUTIONS 2025/2026
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 qtrs. 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
, The keg 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 total 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
What are the factors that impact afterload? ANS >>> arterial
contractility, pressure, and resistance
What is released when the parasympathetic nerve fibers are stimulated? ANS
>>>
WITH COMPLETE SOLUTIONS 2025/2026
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 qtrs. 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
, The keg 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 total 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
What are the factors that impact afterload? ANS >>> arterial
contractility, pressure, and resistance
What is released when the parasympathetic nerve fibers are stimulated? ANS
>>>
