P waves usually appear before:
A)T waves.
B)upright waves.
C)PR intervals.
D)QRS complexes.

Name: P waves usually appear before: A)T waves. B)upright waves. C)PR intervals. D)QRS complexes.
Brand: Quizplus
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Question

Quizplus · Accepted Answer

P waves are the initial electrical signal of the heart's contraction, followed by the QRS complex, representing the ventricular contraction. Therefore, P waves appear before QRS complexes.

P Waves Usually Appear Before