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BASIC DYSRHYTHMIA COURSE EXAM 2025/2026 QUESTIONS AND ANSWERS 100% PASS

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BASIC DYSRHYTHMIA COURSE EXAM 2025/2026 QUESTIONS AND ANSWERS 100% PASS

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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

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