A 2-week-old boy is referred to our institution for further evaluation of an intraventricular hemorrhage (IVH). He was born at 40 and 1/7 weeks' gestation weighing 3,535 g via cesarean delivery for failure to progress and nonreassuring fetal heart tracing to a 24-year-old gravida 1, para 1 mother with chorioamnionitis. Results of prenatal ultrasonography and maternal laboratory tests were normal. Apgar scores were 3 and 7 at 1 and 5 minutes, respectively. Continuous positive airway pressure was initiated for poor respiratory effort. He received supplemental oxygen until postnatal day 8 due to persistent tachypnea and clinical respiratory distress syndrome. Given an initial newborn sepsis risk score of 0.74, (1) which increased to greater than 3 with persistent hypothermia and a supplemental oxygen requirement, the patient received ampicillin and gentamicin for 48 hours, as well as acyclovir for 5 days. Cultures of blood, urine, and cerebrospinal fluid were all...

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