A 32-year-old fit female patient comes in for a general checkup. She has no recognized medical conditions, either. Every day, she runs 5 kilometers. Recently, she experienced dizziness while working out at the gym. She claims that she has never experienced something comparable before. She did say that it was a warm day with plenty of sunshine and that she had worked out a lot more than usual. She denies experiencing any palpitations, syncopal episodes, or chest discomfort. One of her relatives, who is a medical student, quickly checked her vital signs. Her heart rate was constantly in the low 50s, which worried him. He recommended that she see a doctor for a checkup and additional investigation. Her EKG is shown. Which statement is accurate?