A patient in their 60s presented to the emergency department with shortness of breath for a duration of 2 days. The patient had no known medical history and was not vaccinated against the COVID-19 virus. On admission, the patient’s COVID-19 test result was positive, with computed tomography pulmonary angiography results revealing multifocal opacities that were consistent with COVID-19 pneumonia, but no pulmonary embolism. The patient had an unremarkable electrocardiogram (ECG) and echocardiogram results during the first few days of hospitalization. The patient’s illness progressed, and they developed acute respiratory distress syndrome that required intubation and proning. The patient’s course was also complicated by acute kidney failure, ultimately requiring them to undergo hemodialysis. On day 11, the intensive care team noted unusual changes in the patient’s telemetry results (frontal leads II and III) (Figure, A).