A preterm infant is defined as what?

A preterm infant is accurately defined as being less than 38 weeks of gestational age. This classification is crucial because it indicates that the infant has been born before completing the full term of pregnancy, which is typically around 40 weeks. Infants born prematurely may face a variety of health challenges due to their underdeveloped physiological systems, including respiratory, gastrointestinal, and immune systems.

The definition distinguishes preterm infants from those born at full term, which is generally between 39 and 41 weeks. Understanding this classification helps healthcare providers to monitor and manage potential complications associated with preterm birth, ensuring that appropriate interventions are made to support the infant's health and development.