A 51-year-old woman is brought to hospital by her husband following a few-minute episode of loss of consciousness. She was watching TV while this occurred. She had no bowel or bladder incontinence during this episode. She did not bite her tongue. She has a 30-year history of smoking and a 5-year history of type II diabetes. Vitals are normal. Neurologic and cardiac exam show normal findings. ECG shows Q waves in leads V2-V4. Which of the following is the most likely explanation for this patient’s presentation?
Adams-Stokes attack
Constrictive pericarditis
Non-ketotic hyperosmolar hyperglycemic crisis
Paroxysmal atrial flutter
Seizure
