Our latest case report from Brady Pregerson, MD, features a woman in her 40s sent from a monoclonal antibody clinic to the ER for a syncopal episode. Check out the EKG and try to determine the correct diagnosis!
History: A woman in her mid-40’s is sent from a nearby monoclonal antibody clinic to the ER for a syncopal episode. She denies any injury or prodromal chest pain, SOB, palpitations, or other complaints beyond the low-grade fever and cough she has been having for the past week.
Exam: Vital signs are normal though the pulse is in the high 90’s. Exam is otherwise non-focal.
An EKG is done:
What is the most likely cause of the EKG?