At present, there is a concept that hypoglycemia can be diagnosed when the blood sugar is lower than 2.2mmol/L regardless of gestational age and day age. When it is lower than 2.6mmol/L, it is generally a threshold value that needs urgent treatment in clinic. There are many causes of hypoglycemia, but at present, the most clear reason is the storage of glycogen and insufficient storage of fat, which are more common in premature infants, small for gestational age infants and macrosomia. The second cause is mainly excessive sugar consumption, including asphyxia, respiratory distress syndrome, which is what we call ARDS, and neonatal scleredema, infection, that is, sepsis; The third is hyperinsulinemia. It is more common that the mother of the child is a baby with diabetes, so it will cause metabolic problems in the child. The fourth endocrine and metabolic diseases, such as neonatal galactosemia, are due to the increase of galactose in blood and the corresponding decrease of glucose; Fifth, glycogen storage disease, the decomposition of glycogen in children is reduced, and the amount of glucose in blood is low; Sixth, diseases of the nervous system, including congenital dysfunction such as medulla, thyroxine or epinephrine, can affect the blood sugar content. The symptoms of hypoglycemia sometimes vary from person to person, and some children are not obvious. The main manifestations are poor reaction, paroxysmal cyanosis, eye tremor, abnormal eye movement and operation, convulsions, apnea, drowsiness and refusal to eat. Some just appeared sweating, sweating, pallor, and low reaction.
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