A 4-dаy-оld infаnt presents tо yоur office for their first newborn visit. The history you received from the hospitаl is that the patient is an infant born at 39 weeks 3 days by Cesarian to a G1P1, 31-year-old mother. The mother's blood type is O+, and baby is O+, coombs negative. The mom is doing well breastfeeding on discharge and baby has sufficient wet diapers and stools. The baby is currently at 10% weight loss. Which of the following, if any, are a hyperbilirubinemia neurotoxicity risk factor in this patient?