<unk>  is an abnormal clinical and laboratory<unk>  condition that is frequently observed in infants. It is commonly presented within the first 72 hours of a newborn's life. Healthy term infants go through a physiological nadir of serum calcium levels at 7.5 - 8.5 mg/dL by day 2 of life.<unk>  is a low blood calcium level. A total serum calcium of less than 8 mg/dL (2mmol/L) or ionized calcium less than 1.2 mmol/L in term neonates is defined as<unk> . In preterm infants, it is defined as less than 7mg/dL (1.75 mmol/L) total serum calcium or less than 4mg/dL (1 mmol/L) ionized calcium. Both early onset<unk>  (presents within 72h of birth) and late onset<unk>  (presents in 3-7 days after birth) require calcium supplementation treatment. Infants with intrauterine growth retardation, perinatal asphyxia, preterm, and diabetic mothers are most likely to develop<unk> . It is not understood why premature infants have<unk> , but a proposed idea is that a large increase of calcitonin may lead to<unk> . Another hypothesis includes impaired secretion of PTH or Parathyroid hormone.
Neonatal hypocalcemia
Neonatal diabetes
Neonatal hypoglycemia
Transient hyperammonemia of the newborn
Transient neonatal diabetes
Shaken baby syndrome
Permanent neonatal diabetes
Neonatal sepsis