Treat underlying condition, resuscitate prn
If well-appearing with low-moderate blood and suspect milk or soy protein induced colitis, trial eliminating milk/soy  are well appearing, stools with low-moderate blood, trial eliminating milk and soy from the diet
Neonatal lower gastrointestinal bleeding
Emergent: typically do not present with isolated hematochezia
Breast milk jaundice
Necrotizing enterocolitis
Infant scalp hematoma
Malrotation with volvulus
Grey baby syndrome
Hirschsprung's disease