A 58-year-old man with PMHx of cardiomyopathy (EF ~30%) presents to the ED with intermittent episodes of palpitations and near syncope. The following ECG was obtained during an episode:
A 58-year-old woman with PMHx of HTN and polysubstance abuse presents to the ED after a syncopal episode. She has been having nausea, vomiting, and diarrhea. She is noted to…