Q. A 12-year-old male is brought to the emergency department due to an observed transient loss of consciousness. The patient has no significant medical history except for a recent episode of tonsillitis, which was treated with oral antibiotics. His family history is significant for the sudden death of a sibling reportedly while sleeping. The patient’s vital signs are normal and physical examination reveals no abnormalities. An electrocardiogram suggests Brugada's syndrome. Which of the following would you expect to find in the ECG of this patient?