...found blood in Luke’s stool, they took him to the pediatrician who said he had an anal fissure. When the bleeding didn’t stop, Liza and Scott knew that wasn’t the problem. So the pediatrician referred them to a pediatric gastroenterologist who performed a series of tests on Luke, including a complete blood count (CBC), colonoscopy, kidney scan, and a test for clostridium difficile and e-coli. When the results came back, Luke was diagnosed with a...