BASIC DYSRHYTHMIA COURSE EXAM
2025/2026 QUESTIONS AND ANSWERS
100% PASS
SA node - ANS the major pacemaker of the heart
60-100 - ANS inherent rate of the SA node
40-60 - ANS inherent rate of the AV node
20-40 - ANS inherent rate of the ventricles (purkinjie fibers)
systole - ANS phase of contraction
diastole - ANS phase of relaxation
p wave - ANS what does atrial depolarization show on the ECG?
QRS complex - ANS what does ventricle depolarization show on the ECG?
T wave - ANS what does repolarization show on the ECG?
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, increase - ANS what does sympathetic stimulation do to the heart rate?
decrease - ANS what does parasympathetic stimulation do to the heart rate?
absolute refractory period - ANS the period immediately following the firing of a nerve fiber
when it cannot be stimulated no matter how great a stimulus is applied
relative refractory period - ANS during the ventricular cardiac cycle when all cardiac cells are
not fully repolarized and a strong enough stimulus can excite cardiac tissue and initiate
arrhythmias
last half of t wave - ANS When is the relative refractory period of the ventricles?
.20 secs - ANS how much time is one large box in an ecg strip?
.04 secs - ANS how much time is one small box in an ecg strip?
0.12-0.20 - ANS normal range of PR interval
0.04-0.12 - ANS normal range of QRS complex
less than 1/2 the preceding R-R interval - ANS what is the normal time of the QT?
p to p - ANS how do you measure the atrial rate?
R to R - ANS how do you measure the ventricular rate?
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
2025/2026 QUESTIONS AND ANSWERS
100% PASS
SA node - ANS the major pacemaker of the heart
60-100 - ANS inherent rate of the SA node
40-60 - ANS inherent rate of the AV node
20-40 - ANS inherent rate of the ventricles (purkinjie fibers)
systole - ANS phase of contraction
diastole - ANS phase of relaxation
p wave - ANS what does atrial depolarization show on the ECG?
QRS complex - ANS what does ventricle depolarization show on the ECG?
T wave - ANS what does repolarization show on the ECG?
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, increase - ANS what does sympathetic stimulation do to the heart rate?
decrease - ANS what does parasympathetic stimulation do to the heart rate?
absolute refractory period - ANS the period immediately following the firing of a nerve fiber
when it cannot be stimulated no matter how great a stimulus is applied
relative refractory period - ANS during the ventricular cardiac cycle when all cardiac cells are
not fully repolarized and a strong enough stimulus can excite cardiac tissue and initiate
arrhythmias
last half of t wave - ANS When is the relative refractory period of the ventricles?
.20 secs - ANS how much time is one large box in an ecg strip?
.04 secs - ANS how much time is one small box in an ecg strip?
0.12-0.20 - ANS normal range of PR interval
0.04-0.12 - ANS normal range of QRS complex
less than 1/2 the preceding R-R interval - ANS what is the normal time of the QT?
p to p - ANS how do you measure the atrial rate?
R to R - ANS how do you measure the ventricular rate?
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
