On an ECG, a long P-R interval might indicate
A) tachycardia.
B) an AV node block.
C) atrial fibrillation.
D) sinus arrhythmia.
E) an SA node block.

Name: On an ECG, a long P-R interval might indicate A) tachycardia. B) an AV node block. C) atrial fibrillation. D) sinus arrhythmia. E) an SA node block.
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Question

Quizplus · Accepted Answer

A long P-R interval on an ECG typically indicates an AV node block, which leads to delayed conduction between the atria and ventricles.

On an ECG, a Long P-R Interval Might Indicate