Primary care doctors have heard it all—yet there are four words they hope their patients don’t say. Here’s what happens: During the last moments of an appointment, as the doctor is walking out the door, a patient interjects: “Just one more thing.” It sounds like an afterthought, but it sometimes turns out to be something serious, like a symptom that requires immediate attention or a side effect that changes the treatment plan. “I’ve heard it many times,” says Dr. Lisa Ravindra, a primary care