~ECG~ Bundled Tests 2026 Questions
and Answers
Diastole - Correct answer-The relaxation of the chambers of the heart during which
blood enters the heart from the vascular system and the lungs
Systole - Correct answer-The contraction of the heart
Willem Eithoven - Correct answer-A dutch physiologist who developed techinques
to record the electrical activity of the heart in the late 1800s
Normal Sinus Rhythm(NSR) - Correct answer-Regular heart rate of 60-80 bpm
Sinus Bradycardia - Correct answer-A heart rate below 60 bpm
Sinus Tachycardia - Correct answer-A heart rate above 100 bpm
Polarization - Correct answer-The resting state of the myocardial wall, no electrical
activity
Depolarization - Correct answer-The elecrical system of the heart stimulates a
myocardial cell, resulting in the contraction of the stimulated heart muscle
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, Repolarization - Correct answer-The process of reaching the resting state before
the heart muscle cells can be electrically stimulated again
P wave - Correct answer-The first deflection=occurs during the contraction of the
atria
PR segment - Correct answer-return to baseline after atrial contraction
QRS complex - Correct answer-contraction of both ventricles
ST segment - Correct answer-Time between the end of ventricular contraction and
the beginning of ventricular recovery
T wave - Correct answer-Repolarization of the ventricles
QT interval - Correct answer-Between the beginnings of the QRS complex through
the T wave
U wave - Correct answer-Occasionally seen as a small waveform after the T wave
Standard (Bipolar) Leads - Correct answer-The first three leads; they use two limb
electrodes to record the heart's electrical activity
Lead l - Correct answer-Records tracings between the right arm and the left arm
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and Answers
Diastole - Correct answer-The relaxation of the chambers of the heart during which
blood enters the heart from the vascular system and the lungs
Systole - Correct answer-The contraction of the heart
Willem Eithoven - Correct answer-A dutch physiologist who developed techinques
to record the electrical activity of the heart in the late 1800s
Normal Sinus Rhythm(NSR) - Correct answer-Regular heart rate of 60-80 bpm
Sinus Bradycardia - Correct answer-A heart rate below 60 bpm
Sinus Tachycardia - Correct answer-A heart rate above 100 bpm
Polarization - Correct answer-The resting state of the myocardial wall, no electrical
activity
Depolarization - Correct answer-The elecrical system of the heart stimulates a
myocardial cell, resulting in the contraction of the stimulated heart muscle
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
, Repolarization - Correct answer-The process of reaching the resting state before
the heart muscle cells can be electrically stimulated again
P wave - Correct answer-The first deflection=occurs during the contraction of the
atria
PR segment - Correct answer-return to baseline after atrial contraction
QRS complex - Correct answer-contraction of both ventricles
ST segment - Correct answer-Time between the end of ventricular contraction and
the beginning of ventricular recovery
T wave - Correct answer-Repolarization of the ventricles
QT interval - Correct answer-Between the beginnings of the QRS complex through
the T wave
U wave - Correct answer-Occasionally seen as a small waveform after the T wave
Standard (Bipolar) Leads - Correct answer-The first three leads; they use two limb
electrodes to record the heart's electrical activity
Lead l - Correct answer-Records tracings between the right arm and the left arm
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
