17-hydroxiprogesterone values in healthy preterm infants.

Introduction: In preterm newborn, problems with the interpretation of 17-OHP may occur.

Objective: Evaluate 17-OHP values in healthy preterm newborns until they reach the corrected gestational age.

Methods: Longitudinal study of 36 preterm infants with 17-OHP evaluation using ELISA from heel blood from 3 to 5 days and thereafter every 2 weeks until the corrected gestational age.