Why do LGA newborns often experience hypoglycemia?

• A. Due to low maternal nutrition
• B. Because mom's glucose levels are elevated
• C. As a result of birth injuries
• D. Because they are preterm

Answer: (B)

The reason LGA (Large for Gestational Age) newborns often experience hypoglycemia is primarily because their mother's glucose levels are elevated during pregnancy. When a mother has high blood sugar, the fetus also experiences elevated glucose levels, promoting rapid growth and weight gain. After birth, especially if the newborn is LGA, they may have an increased risk of hypoglycemia as their insulin production adjusts to a significantly lower glucose environment outside the womb. The newborn’s body, which has been used to processing high amounts of glucose, may continue producing insulin robustly even after the delivery, leading to a drop in blood sugar levels.

The other choices provide different perspectives but do not directly link the key reason for hypoglycemia in LGA newborns. Low maternal nutrition is less likely to cause conditions associated specifically with LGA infants. Birth injuries focus on physical damage during delivery rather than metabolic issues like hypoglycemia. Preterm status would not align with LGA, as LGA typically refers to infants who are full-term or post-term. Therefore, the elevated maternal glucose levels create a metabolic environment that significantly contributes to the hypoglycemic state in LGA newborns after birth.