Block
2nd Degree AV Block, Mobitz I (Wenckebach)
Progressive PR lengthening until a QRS is dropped.
LEAD II · 25 mm/sMobitz I
Characteristics
- PR interval
- Progressively longer, then a P without QRS
- Rhythm
- Regularly irregular in groups
Common causes
- Increased vagal tone
- Inferior MI
- AV nodal drugs
ACLS treatment
- 1If symptomatic bradycardia: atropine, pacing per bradycardia algorithm.