In which pacemaker complication does the tracing show a pacing spike but no waveform immediately after it?
A)Malsensing
B)Malfunctioning
C)Loss of capture
D)Oversensing

Question

Quizplus · Accepted Answer

When there is loss of capture, the pacemaker fails to depolarize the myocardium, resulting in a pacing spike with no waveform immediately after it. Malsensing and oversensing both involve the pacemaker mistaking other signals for a intrinsic cardiac activity, while malfunctioning could manifest in various ways and may or may not involve a pacing spike.

In Which Pacemaker Complication Does the Tracing Show a Pacing