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pacemakers
Question | Answer |
---|---|
what would indicate the need for a pacemaker | the failure of the heart to initiate or conduct an impulse |
communicates between generator and heart and delivers current to the heart | leads |
part of the lead that is in contact with the heart | electrode |
amount of electrical energy delivered by the pavemaker to stimulate the heart | output |
generator has delivered a stimulus to the heart and you can see it on the EKG strip | firing |
small vertical mark on the EKG when the pacemaker emits an outpur or "fires" | spike |
response to stimuls | capture |
pace spike in the atrium is followed by a what on the EKG | P-wave |
pacer spike in the ventricle is folled by a what on the EKG | QRS-wave |
ability of the pavcemaker to detect the hearts intrinsic electrical activity | sensing |
when the pacer does not see patients intrinsic beat and results in overfiring | undersensing |
pacer fails to pace when it should, it thinks it sees intrinsic activity that could actually be artifact or a t-wave | oversensing |