First-Degree AV Block
Results:
Recent ECG Case Highlights from the University of Maryland (Part II)
A 67-year-old man arrives at the emergency department complaining of lightheadedness. The following ECG is obtained and shows a slow, regular rhythm around 40 beats per minute. The P waves…
First-Degree AV Block
Key Points Defined by a PR interval >200 ms with consistent 1:1 AV conduction and no dropped QRS complexes. Conduction delay is most often at the AV node; His–Purkinje delay…
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