Review Question - QID 109110

A 3-week-old girl presents with her parents to her pediatrician for a routine visit. The child is sleeping at regular 2-hour intervals and feeding and stooling well. The parents have noticed a “swelling of the belly button.” Cord separation occurred at 7 days of age. The swelling seems to come and go but is never larger than the size of a blueberry. They deny any drainage from the swelling. Her temperature is 98.6°F (37°C), blood pressure is 68/43 mmHg, pulse is 128/min, and respirations are 32/min. On physical exam, the child is in no acute distress and appears developmentally appropriate for her age. Her abdomen is soft and non-tender with a soft, 1 cm bulge at the umbilicus. The bulge increases in size when the child cries and can be easily reduced inside the umbilical ring without apparent pain. Which of the following is the most appropriate next step in management?