October 2017 EKG Puzzler
October  2017

A 31-year-old male applied for life insurance with history of syncope in two occasions labelled by his Primary Care Physician as “vasovagal.” He had no cardiovascular risk factors and no family history of sudden death. His physical, BMI and vitals are within normal limits. His labs including serum calcium are WNL. No further work up was performed. What is the major abnormality in this EKG?

EKG.png See the answer here.