Question

Which of the following ECG findings would indicate a possible pacemaker failure?

A) Occasional QRS complexes without pacer spikes
B) A QRS duration of 0.20 seconds
C) Pacemaker spikes without associated QRS complexes
D) A pacemaker spike preceding each P wave

Answer 1

Pacemaker spikes without associated QRS complexes on an ECG may indicate possible pacemaker failure.

Step-by-step explanation:

The ECG finding that would indicate possible pacemaker failure is Pacemaker spikes without associated QRS complexes. When a pacemaker spike is seen on an ECG without an associated QRS complex, it could suggest that the pacemaker is not successfully stimulating the heart to contract. In a normal ECG, each pacemaker spike should be followed by a QRS complex, which represents the depolarization and contraction of the ventricles.