The basic function of pacemakers is to sense for normal heart activity, and if it does not occur, induce action potentials by passing depolarizing currents into a heart chamber, triggering a self-propagating wave of electrical depolarization.
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Q18: Failure to sense can be recognized by
A)
Q19: Oversensing can be recognized by
A) the presence
Q20: Pacemaker-mediated tachycardia can be recognized by
A) the
Q21: An implantable cardioverter-defibrillator can be used to
Q22: Some modern implantable devices have both a
Q24: The more complex permanent pacemakers have the
Q25: Pacemakers must be internally programmed via a
Q26: The ECG can be used to identify
Q27: The biventricular pacemaker employs three leads: one
Q28: On the ECG, the firing of a
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