A nurse is assessing a newborn whose mother had gestational diabetes mellitus.Which of the following findings should the nurse identify as a manifestation of hypoglycemia?

Choice A rationaleJitteriness indicates hypoglycemia in newborns as glucose is critical for neonatal brain function. Blood glucose less than 45 mg/dL supports this diagnosis, requiring prompt intervention to avoid neurological harm.Choice B rationaleHypertonia typically suggests central nervous system dysfunction but is not a hypoglycemia indicator. Normal newborn muscle tone ranges are neither hypertonic nor hypotonic in non-pathological states.Choice C rationaleAcrocyanosis is common in newborns due to immature circulatory systems. It is not indicative of hypoglycemia and resolves as peripheral circulation improves.Choice D rationaleGeneralized petechiae suggest coagulation disorders or sepsis, not hypoglycemia. Petechiae warrant investigation of clotting abnormalities or infections, rather than focusing on glucose regulation.