Final answer:
When the appropriate ECG complex follows the pacing spike, it is said to be captured. This means that the electrical signal is successfully transmitted to the heart and causes a contraction.
Step-by-step explanation:
When the appropriate electrocardiogram (ECG) complex follows the pacing spike, it is said to be captured. This means that the electrical signal is successfully transmitted to the heart and causes a contraction. The pacing spike is an artificial electrical stimulus that is used to regulate the heart's rhythm in certain medical conditions