The distraught wife paced the exam room, anxious for someone to come and tell her about her husband. She’d brought him to the emergency department that afternoon when he complained about chest discomfort. Sophia Hayes, 27, a fourth-year medical student at the Oregon Health & Science University, entered with a quiet knock, took a seat and asked the wife to sit, too. Softly and slowly, Hayes explained the unthinkable: The woman’s husband had had a heart attack.