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Cards In This Set
| Front | Back |
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AV sequential are:
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Two electrodes on lead wire one placed on RIGHT atrium and one on Right ventricle
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Pacer spikes indicate:
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Only that the pacemaker is firing
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Pacemaker rate are:
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Measured pacer spike to pacer spike
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What type of complex does the spike produce?
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P waves - QRS waves
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Does every pacemaker spike produce a complex?
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Yes (capture)
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Battery failure:
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Decreased amplitude of pacemaker spike and slowing pacemaker rate.
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Will batteries run out?
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No, the (ERI), elective replacement indicator will activate.
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Testing your battery?
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The battery status and general functioning can be done over the telephone or doctors visit (1-2 months)
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Runaway pacemaker:
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Is the rapid rate of electrical impulse discharge results, pacing spikes may be very low in amplitude (due to bad battery) and because at very high rates the ventricle may become refractory to stimulation.
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Failure to sense:
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The patient's own intrinsic rhythm and generate a pacer spike in the QRS, absolute or relative refractory period of T wave. (sensitivity setting is too low)
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Failure to capture:
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When output is too low, failure to depolarize the ventricle, which causes absence of mechanical contraction of ventricle, or no QRS
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Failure to pace:
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To fire or pace, patient's rhythm returns to whatever rhythm they had prior to receiving a pacemaker
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Under sensing:
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A pacemaker spike will occur too soon after intrinsic complex, occurs because it did not see or sense the intrinsic beat
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Over sensing:
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A pacemaker spike will not occur when expected, pacer misinterprets other electrical activity as a QRS, or fires at rate slower than preset rate etc....
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Atrial Pacing looks like:
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In front of P-wave, one pacer spike per P-wave
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