Atrial Fibrillation with RVRAtrial Fibrillation with RVR exaggerates ST ElevationLBBBOMI Mimic5 Min Read Steve SmithonJanuary 12, 2022 Wide Complex Tachycardia with Huge ST Elevation. What is going on? This 70-something woman with no significant past history (no previous ECGs or cardiac history) presented by EMS with fairly acute chest…