You agree to meet HF and his parents in the ER early one evening because he seems to be getting sicker. He has a several week history of poor feeding. In further questioning his parents state that he has always been a slow feeder. He seems to tucker out while eating but remains hungry. You have seen him on one other occasion, and note that he has gained only a few ounces since his two week well child check.
Prenatal history is unremarkable.
This is the second child of a couple in their early thirties. Mom was healthy throughout the pregnancy. There were no infections and the baby had no difficulties surrounding the delivery.