An interval on an ECG tracing is:
A)the period of time between two activities within the heart.
B)any portion of the electrical tracing that is produced by the heart.
C)a complete ECG waveform.
D)the result of atrial depolarization.

Question

Quizplus · Accepted Answer

An interval on an ECG tracing refers to the period of time between two activities within the heart, such as the time between atrial depolarization and ventricular depolarization (PR interval) or the time between ventricular depolarization and repolarization (QT interval). Therefore, option A is the correct answer, while options B, C, and D are incorrect.

An Interval on an ECG Tracing Is