ANSWERS.LATEST EXAM 2025/2026
When is a ventricular pacemaker is used alone - ANSWER-When
conduction in the ventricles is not working properly, to stimulate the
ventricles to contract.
When is a atrial pacemaker is used alone - ANSWER-When the
conduction system from the AV node through the ventricles in intact
and functioning.
Describe what a AV pacemaker does - ANSWER-Stimulates both
ventricles to contract instead of the typical stimulation of only the
lower portion of the right ventricles; mimics the normal cardiac
conduction system and allows the atria to contract completely before
the ventricles to allow for an atrial kick
Basic principle as how electronic pacemakers work - ANSWER-Provides
small amounts of electrical current at predetermined intervals to
mimic the normal pacemaker of the heart; delivers an electrical
impulse to the myocardium to cause the cells to depolarize
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, If you have an electronic pacemaker set at 70 beats per minute and the
AV node is firing at 54 beats per minute, what is the patient's heart rate
- ANSWER-70
What type of pacemaker is used for patients who have heart failure -
ANSWER-Atriobiventricular pacing
Which term indicates the mark on an ecg tracing that represents the
stimulation of electrical current from pacemaker generator - ANSWER-
Pacing spike
Which pacemaker rhythm does not have a pacing spike before the P
waves - ANSWER-Atrial pacemaker rhythm
Which pacemaker rhythm has a pacing spike before the QRS complexes
but no pacing spike before the P waves - ANSWER-Ventricular
pacemaker rhythm
The components to be evaluated on a pacemaker tracing - ANSWER-
Chamber depolarization, AV delay, and the presence of atrial/
ventricle spikes
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