 Prior to a non-urgent blood transfusion, subjects will be randomized to either stopping feeds or continuing feeds. The intervention group will be the placement of a subject in the NPO group. Subjects in the intervention group will have their feedings stopped for a total of 24 hours around the time of the PRBC transfusion. These infants will be given intravenous nutrition during the period of time that they will not be fed. During the transfusion, both groups of subjects will have serum cytokine levels obtained at 3 time intervals- 1 4 hours pre-transfusion, 2 2-4 hours post-transfusion, and 3 20-24 hours post-transfusion. 