ECG library
Atrial fibrillation with slow ventricular response
coreAn 81-year-old on three AV-nodal agents, brought in after a fall.
25 mm/s · 10 mm/mV · synthetic tracing
100%
Calipers:2000 ms50.0 small boxes30 bpm if R-RDrag the orange markers. One small box = 40 ms.
Key findings
- Irregular bradycardia without P waves
- Pauses on the strip
Learning points
- The first intervention is usually the medication list, not a pacemaker.
- A perfectly regular slow rhythm in known AF is different and worse: suspect complete block with a junctional escape.
Connected