Large-for-Gestational-Age (LGA) Infant By Arcangela Lattari Balest, MD, University of Pittsburgh, School of Medicine Reviewed / Revised Oct 2022 View Patient Education Etiology Symptoms, Signs, and Treatment Key Points Topic Resources Fenton growth chart for preterm... Fenton growth chart for preterm... Infants whose weight is > the 90th percentile for gestational age are classified as large for gestational age.