A 27-year-old woman comes to the emergency department after lo | Surgery collections Videos and quizez 2021

A 27-year-old woman comes to the emergency department after losing consciousness for 2 minutes while standing in line at a supermarket She recalls nausea and a feeling of warmth spreading over her body immediately before passing out Her friend, a nurse who was with her during the episode, noted a weak pulse of 40/min. The patient was not confused after the episode and has never experienced a similar event She has not seen a doctor in several years and takes no medications. She does not use tobacco, alcohol, or illicit drugs. The patient's father suffered a heart attack at age 50, and her sister has a seizure disorder. Vital signs are within normal limits. ECG shows normal sinus rhythm with no other abnormalities.