Biology · Human Physiology
An ECG shows a regular rhythm, heart rate of 60–100 bpm, a P wave before every QRS, normal QRS complex duration, and a PR interval consistently longer than 0.20 seconds. What is the most likely diagnosis?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Complete Heart Block
- 2Sinus Bradycardia
- 3Second Degree AV Block Type I
- 4First Degree AV Block✓
Correct answer
First Degree AV Block
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