What is the expected range of PaO2 for preterm neonates?

The expected range of PaO2 for preterm neonates is indeed 45-65 mm Hg. This range is crucial for clinicians to monitor because preterm infants have underdeveloped lungs and are at high risk for respiratory complications.

Maintaining an appropriate PaO2 is essential to ensure adequate oxygenation while minimizing the risks associated with hyperoxia, such as retinopathy of prematurity. The specified range reflects a balance where sufficient oxygen is available to avoid hypoxia while reducing the potential for oxidative stress that can occur with elevated oxygen levels.

Clinicians monitor this parameter closely, adjusting oxygen supplementation to keep within the recommended limits, which can vary depending on gestational age and clinical condition. Understanding this range supports better management of respiratory needs in this vulnerable population.