Certified Rhythm Analysis Technician (CRAT) Practice Exam 2025 - Free CRAT Practice Questions and Study Guide

The term that indicates the stimulation of electrical current from the pacemaker generator is "atrial capture." When a pacemaker sends out an electrical impulse, it can lead to the successful depolarization of the atria, which is referred to as atrial capture. This is a crucial aspect in assessing the effectiveness of a pacemaker, as capture confirms that the electrical signal from the pacemaker is successfully reaching the heart muscle and causing it to contract.

In context, triggered refers to a state where the pacemaker generates an impulse in response to sensing a certain rhythm but does not specifically describe the stimulation process itself. Packing spike is a term often used to describe the visual representation of a pacing spike on an ECG but does not directly indicate the action of stimulating the heart. Over-sense occurs when the pacemaker mistakenly detects native heart activity as a signal, potentially leading to inappropriate pacing; it is not relevant to the stimulation of electrical current from the generator.

Understanding atrial capture is essential for monitoring the effectiveness of a pacemaker, ensuring that it fulfills its role in maintaining heart rhythm.