Chap 8 Pacemaker rhythms Flashcards
_______ pacemakers stimulate the endocardium of the right atrium or ventricle by means of an electrode introduced into a central vein, such as the subclavian, femoral, brachial, internal jugular or external jugular vein
Transvenous
A ____ electrode has one pacing electrode that is located at its distal tip
Unipolar
Most temporary transvenous pacemaker use a _____ lead system
Bipolar
A pacemaker that paces a single heart chamber, either the atrium or ventricle, has ____ lead placed in the heart
One
Ventricular pacing is accomplished by placing the pacing electrode in the right ventricle. stimulation of the ventricles produces a pacemaker spike on the ECG followed by a
Wide QRS
This pacemaker has three leads; one for each ventricle and one lead for the right atrium
Biventricular
This pacemaker only charges when the patient’s heart drops below pacemaker’s base rate
Demand
This pacemaker continuously charges at a preset rate regardless of the patient’s heart rate or metabolic demands
Fixed-rate
This pacemaker uses two leads;one in the right atrium and the other in the right ventricle
Dual chamber
This is when A pacemaker malfunction occurs when the pacemaker fails to deliver an electrical stimulus at its programmed time
Failure to pace