### Blood Glucose Levels in Newborns Newborn babies typically have lower blood glucose levels compared to older children and adults. At birth, infants can have blood glucose levels as low as 25 mg/dL. These levels usually rise within a few days to a range between 60 to 100 mg/dL. #### Neonatal Hypoglycemia Some newborns are born with neonatal hypoglycemia, which is defined as having blood glucose levels less than 30 mg/dL at birth and less than 45 mg/dL several days after birth. This condition is more common in preterm babies, small-for-gestational-age babies, and babies born to mothers with diabetes. Symptoms can be vague but may include jitteriness, poor feeding, and lethargy. Treatment often involves feeding the baby breast milk or formula, and in some cases, a glucose drip may be necessary. #### Neonatal Hyperglycemia On the other hand, some babies may be born with neonatal hyperglycemia, which is defined as having serum glucose levels higher than 150 mg/dL or whole blood glucose levels higher than 125 mg/dL at birth. This condition is less common and usually resolves within the first few days of life. Treatment may include reducing the amount of glucose given to the infant and possibly starting insulin therapy. #### Neonatal Diabetes Fluctuating glucose levels may also indicate neonatal diabetes, a rare condition diagnosed within the first 6 months of life, often due to a genetic mutation. Prompt diagnosis and treatment are crucial to prevent complications such as diabetic ketoacidosis (DKA), which can lead to neurological damage and even death. Symptoms of neonatal diabetes include high blood glucose levels and DKA. Monitoring and managing blood glucose levels in newborns is essential for their health and well-being. Parents should be aware of the signs and symptoms of both low and high blood glucose levels to ensure timely medical intervention.