First Degree Heart Block
Defined as PR interval > 200ms, commonly caused by AV nodal blocking drugs
Tag PR Interval
AV Block: 2nd degree, Mobitz I (Wenckebach Phenomenon)
A review of the basic ECG features, causes and pathophysiology of Mobitz I AV Block (Wenckebach Phenomenon) with some example ECGs.
PR Interval
Assessment / interpretation of the EKG PR interval. ECG PR interval is the time from the onset of the P wave to the start of the QRS complex.