| infant, newborn | An infant during the first month after birth. (12 Dec 1998) |
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| infant, newborn, diseases | Diseases of newborn infants present at birth (congenital) or developing within the first month of birth. It does not include hereditary diseases not manifesting at birth or within the first 30 days of life nor does it include inborn errors of metabolism. Both hereditary diseases and metabolism, inborn errors are available as general concepts. (12 Dec 1998) |
| jaundice of the newborn | Icterus which can be accentuated by many factors including excessive haemolysis, sepsis, neonatal hepatitis or congenital atresia of the biliary system. Synonym: physiologic icterus, jaundice of the newborn, neonatal jaundice, physiologic jaundice. (05 Mar 2000) |
| leukocytosis of the newborn | An apparently "physiologic" leukocytosis usually observed in newborn infants, in whom the white blood cell counts are usually greater than 10,000 per cu mm, and sometimes range to 45,000 per cu mm, resulting chiefly from increased numbers of neutrophils (especially single and bilobed forms). On the third or fourth day of life, the count generally decreases rapidly, and then fluctuates for several days; beginning about the fourth week of life, a relative lymphocytosis is observed, and this normally continues for a few years. (05 Mar 2000) |