When the artificial pacemaker does not depolarize the specified chamber or chambers of the heart and is denoted by the presence of a pacemaker spike not flowed by a QRS, this is referred to as failure to:
A) energize.
B) stimulate.
C) generate.
D) capture.

Question

Quizplus · Accepted Answer

Failure to capture occurs when the pacemaker spike is present, indicating that the artificial pacemaker is sending an electrical signal, but there is no corresponding cardiac response (QRS complex). This means that the pacemaker is not successfully "capturing" the heart muscle to depolarize and cause contraction.

When the Artificial Pacemaker Does Not Depolarize the Specified Chamber