Effect of Oral and Intravenous Diltiazem Protocol for Emergency Department Atrial Fibrillation

Diltiazem 0.25mg/kg injection, give over 2 minutes, max dose 30mg

these patients will receive traditional treatments at provider discretion. They must receive at least one intravenous medication for atrial fibrillation with rapid ventricular response. This will be a heterogenous group of patients receiving digoxin, amiodarone, various beta-blockers, and intravenous diltiazem without oral diltiazem.