Key Points Definition: Atrial fibrillation with a slow ventricular response, usually < 60 bpm. ECG: Irregularly irregular rhythm, no discrete P waves, slow R-R intervals. Common causes: AV-nodal blockers (digoxin,…
A 56-year-old man with PMHx of atrial fibrillation presents to the ED with generalized weakness and near-syncope. He is found to be hypotensive and bradycardic. The following ECG is obtained: