Mobitz Type I (Wenckebach Phenomenon) 2nd Degree AV Block on EKG

 • P-R interval gradually increases till a dropped beat and then it resets

 • P-P interval remains relatively constant

 • The P:QRS conduction ratio varies from 5:4 to 6:5 in this ECG (Group Beating)



By Usama Nasir MD @usamanasirmd via @Visualmedapp



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