A patient in their mid-60s with a history of hypertension and hyperlipidemia is brought in by medics with severe bradycardia and diaphoresis. He was at a family event when he suddenly felt lightheaded and had a near syncopal episode. He denies any chest pain or shortness of breath.
HR in the low 20’s. A bit diaphoretic and a bit lethargic
An ECG is done:
What is the most likely cause of the rhythm in this patient?