A 3-day-old girl was born at 36 weeks of gestation and disch…

A 3-day-old girl was born at 36 weeks of gestation and discharged at 30 hours of age. She is breastfed, and her father thinks she looks yellow. Her bilirubin has been evaluated, no treatment is needed today, and feeding is improving. Her parents ask when to bring her back and when to call. Which plan is most appropriate?