What percentile indicates large for gestational age infants?

• A. Less than 75th percentile
• B. 75th to 90th percentile
• C. More than 90th percentile
• D. More than 95th percentile

Answer: (C)

The correct choice signifies that an infant is considered large for gestational age (LGA) when their birth weight is above the 90th percentile for their gestational age. This classification is important for clinical practice as it helps identify infants who may be at risk for various health issues or complications related to their size either during delivery or after birth.

Infants who fall into this category may have an increased likelihood of developing conditions such as hypoglycemia, as they may have higher levels of fetal insulin due to excessive growth. Additionally, delivering a large for gestational age infant can lead to complications like shoulder dystocia during childbirth. Understanding and identifying LGA infants assists healthcare providers in planning for appropriate management and interventions to ensure the well-being of both the infant and the mother.

The other percentiles listed do not define LGA according to standard clinical definitions, as only those above the 90th percentile are recognized as being larger than expected for their gestational age.