Liverpool Hospital
Intensive Care: Learning Packages Intensive Care Unit
Pacemaker Learning Package
LH_ICU2016_Learning_Package_Pacemaker_Learning_Package
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P a g e
Failure to sense
Failure to sense occurs
When the generator does not detect intrinsic beats and initiates an
inappropriate impulse that may or may not capture.
Arrow indicates an atrial beat not sensed by the pulse generator, which is
followed by a pacer spike.
Figure 23: Critical Care Nurse.
Causes
Inappropriate sensitivity setting
Battery depletion
Decreased QRS voltage
Fusion beat
Dislodged/fractured lead
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