Neonatology I

In the context of neonatal jaundice, which of the following is the most common cause of unconjugated hyperbilirubinemia in the first week of life?

Which of the following conditions in neonates is characterized by a failure of neural crest cells to migrate properly, resulting in an absence of ganglion cells in the distal colon and leading to severe constipation and intestinal obstruction?

Which vitamin deficiency is most likely to cause hemorrhagic disease of the newborn, characterized by bleeding, especially in the first few days of life?

In neonates with persistent pulmonary hypertension of the newborn (PPHN), which of the following is the preferred initial treatment to reduce pulmonary vascular resistance?

Which of the following is the most common cause of early-onset neonatal sepsis in term infants in developed countries?

Which neonatal screening test is used to detect critical congenital heart disease (CCHD) before clinical signs appear?

Which of the following strategies is the most effective in preventing necrotizing enterocolitis (NEC) in preterm infants?

Which condition is a common cause of acute bilirubin encephalopathy (kernicterus) in neonates and requires prompt treatment to prevent neurological damage?

Which congenital infection is most commonly associated with a “blueberry muffin” rash, sensorineural hearing loss, and periventricular calcifications in neonates?

Which of the following conditions in neonates is characterized by respiratory distress, a “ground glass” appearance on chest X-ray, and a deficiency in surfactant?