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What does the small P wave on an ECG indicate?
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18. The Heart
Electrocardiogram (ECG)
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What does the T wave represent on an electrocardiogram (ECG)?
A
Atrial depolarization
B
Ventricular depolarization
C
Ventricular repolarization
D
Atrial repolarization
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Understand the basic components of an electrocardiogram (ECG). An ECG is a graphical representation of the electrical activity of the heart over time.
Identify the key waves on an ECG: P wave, QRS complex, and T wave. Each wave corresponds to specific electrical events in the heart.
Recognize that the P wave represents atrial depolarization, which is the electrical activity that initiates the contraction of the atria.
Understand that the QRS complex represents ventricular depolarization, which is the electrical activity that initiates the contraction of the ventricles.
Learn that the T wave represents ventricular repolarization, which is the process of the ventricles recovering electrically after contraction.
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