Echelon Quiz 2025 – Updated Actual Exam with Correct Answers for Cardiac Rhythm Interpretation and EKG Concepts

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ECHELON QUIZ 2025 UPDATED ACTUAL
EXAM WITH CORRECT SOLUTIONS.



When the sympathetic nerve fibers are stimulated, the heart
rate is ____________. - correct answer- elevated




Electrode location sites should be rotated _______________ or
when the pt is sweaty or has had a bath. - correct answer- q24h




What method is used to calculate atrial and ventricular rate for
irregular rhythms? - correct answer- 6 second rule




T or F: The qrs complex in MCL1 can be negative and still be
normal. - correct answer- T




A wave form is a movement ______________ the isoelectric
line in either a positive or negative direction. - correct answer-
away from




Lead II is helpful in detecting.... - correct answer- sinus node
and atrial arrhythmias

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What affects preload: volume in the veins, pressure in the
arteries or ventricles, or volume of blood in the ventricles? -
correct answer- volume in the veins




Along with Lead II, lead III is most helpful in monitoring
changes in what part of the heart? - correct answer- Inferior
wall MI




What are the best areas to place electrodes? - correct answer-
on soft tissue




The ekg produces an upright pattern on the paper in response
to electrical activity in the heart flowing towards a - correct
answer- positive electrode




The QT interval represents - correct answer- total ventricular
activity




What are the AV valves? - correct answer- mitral and tricuspid