A 55-year-old man with a known left bundle branch block presents to ABEM general hospital with acute chest pain. Vital signs are normal and his pain is slightly improved with…
A 61-year-old man with a history of atrial fibrillation presents to ABEM general hospital with lightheadedness and palpitations. He is tachycardic but otherwise has normal vital signs. The following ECG…
A 34-year-old man is brought to the emergency department with delirium and agitation. The following ECG is obtained:
A 45-year-old woman is being observed in the emergency department after treatment with thrombolytics for MI. She is noted to be tachycardic one hour after treatment with a change in…