Relationship between Apgar score and umbilical cord blood acid-base balance in full-term and late preterm newborns born in medium and severe conditions.

There is low, but significant correlation between clinical condition of a newborn after birth with most of acid-base parameters from umbilical vein blood. The assessment of the newborn's condition after birth using the Apgar score, (but not acid-base parameters) determines the degree of invasiveness of respiratory support activities for newborns after birth.