Bedside glucose monitoring is only effective if the equipment is accurate, rapid, and reliable. This form of testing is often faster and more cost effective. Laboratory serum glucose testing is the most accurate way of testing blood glucose levels. These specimens are either taken from the heel, arterial, or venous punctures and must be store immediately on ice in order to prevent glycolysis, further altering the results. USA guidelines recommended that the hypoglycemic neonate should have a glucose test every 2–4 hours for the first 24 hours of life. Guidelines in the UK, however, recommend pre-feed screening of at-risk infants at 2–4 hours of age (to avoid false positives when blood glucose is, ordinarily, at its lowest at 2–3 hours of age) and at the subsequent feed until a blood glucose level of  >2.0 mmol/L (36 mg/dL) on at least two consecutive occasions and is feeding well. 1. Medical history
Maternal diabetes mellitus, gestational hypertension, neonatal erythrocytosis, neonatal haemolysis of incompatible blood groups, perinatal asphyxia, severe infection, sclerosis, neonatal respiratory distress syndrome, etc., especially in premature babies, babies younger than gestational age and those who are underfed in the early stages of life are at risk of neonatal hypoglycaemia. 2. Clinical manifestations
Neonatal hypoglycemia should be considered if there are atypical clinical manifestations, if the symptoms improve after glucose infusion, or if there are neurological symptoms and signs that cannot be easily explained. 3. Blood glucose measurement
Postnatal glucose monitoring is the main method of early detection of neonatal hypoglycaemia.
Long term complications of neonatal hypoglycemia may include:

Neurologic damage that results in mental retardation
Developmental delay
Personality disorders
Recurrent seizure activity
Impaired cardiovascular function

Research
Continuous glucose monitoring devices have been suggested to be helpful for improving blood glucose monitoring in neonatal infants, however, the devices have not been approved for use in this age group and the potential benefits and risks are not clear from available studies.The taḥnīk also exercises the muscles of the mouth and helps with the circulation of blood in the mouth - this may help the baby to be able to suck and take mothers milk. It is also credited to prevent neonatal hypoglycemia in newborn babies. See also
Congenital hyperinsulinism
Hyperinsulinemic hypoglycemia

References
Bibliography
Walker, Marsha (2011). Breastfeeding management for the clinician : using the evidence. Sudbury, Mass: Jones and Bartlett Publishers. ISBN 9780763766511.