____ occurs when the pacer spike, a sharp vertical line on the ECG, is immediately followed by a QRS.

Question

Quizplus · Accepted Answer

Electrical capture is defined as the depolarization of the myocardium in response to an electrical stimulus delivered by the pacing system. This is confirmed on the ECG as the presence of a paced QRS complex following a pacer spike. Mechanical capture refers to the observation of visible mechanical activity in response to electrical stimulation, such as a palpable pulse or blood pressure change, while technical capture refers to the successful delivery of a pacing stimulus without interference or malfunction of the pacing system. Biological capture is not a commonly used term in the context of pacing capture.

____ Occurs When the Pacer Spike, a Sharp Vertical Line