EKG of the Week

This week we have an EKG of a 65 year-old woman who presented with fatigue. She just didn’t seem to have the energy she normally has. No chest pain, shortness of breath, fever, cough or leg swelling. Her vital signs and exam were unremarkable.

Here is her EKG: EKG 2017-07-24

Instead of putting your guesses below, respond to the corresponding Tweet by @RushEmergency.