Which of the following is affected by a properly working pacemaker?
A) Automaticity
B) Stroke volume
C) Cardiac rhythm
D) Ejection fraction

Question

Quizplus · Accepted Answer

A pacemaker helps to regulate and maintain a proper cardiac rhythm by sending electrical impulses to the heart. Therefore, a properly working pacemaker affects cardiac rhythm. Automaticity refers to the heart's ability to generate electrical impulses on its own, which is not directly affected by a pacemaker. Stroke volume and ejection fraction are measures of the heart's pumping efficiency, which may be indirectly impacted by a pacemaker if it helps to maintain a proper cardiac rhythm.

Which of the Following Is Affected by a Properly Working