What is the appropriate target oxygen saturation for a newborn at 5 minutes of life?

The appropriate target oxygen saturation for a newborn at 5 minutes of life is indeed 85-90%. This target is crucial because it reflects a balance between ensuring that the infant is receiving adequate oxygen to support their physiological needs while also considering the transition from intrauterine to extrauterine life.

During the first few minutes, newborns experience significant changes in their circulation and respiratory function, which can affect oxygen saturation levels. A saturation of 85-90% indicates that the infant is receiving sufficient oxygen to meet their metabolic demands after birth, while also ensuring that there is no risk of excessive oxygen delivery, which can be harmful.

In contrast, lower saturation targets, such as those below 85%, could suggest inadequate oxygenation, potentially necessitating further intervention to support the newborn’s respiratory function. Maintaining saturation levels within the 85-90% range correlates with improved outcomes for newborns, aligning with clinical guidelines that prioritize both safety and effectiveness in neonatal care.