title: [Serum anion gap in the umbilical cord blood of healthy newborn infants].
abstract: This paper presents the results of the determination of serum anion gap in arterial and venous umbilical cord blood obtained from a carefully selected group of 47 healthy term newborns. In the arterial blood, the following concentrations of particular anions were found: chloride - 102.85 +/- 4.35 mmol/l, bicarbonate - 22.26 +/- 2.67 mmol/l, protein anions - 11.89 +/- 1.00 mmol/l, and residual anions - 14.26 +/- 4.35 mmol/l, while in the venous blood these values were: chloride - 104.28 +/- 4.14 mmol/l, bicarbonate - 20.79 +/- 2.70 mmol/l, protein anions - 12.48 +/- 1.23 mmol/l, and residual anions - 13.03 +/- 3.06 mmol/l. Provided strict clinical and biochemical (acid-base balance and blood gases) selections criteria are applied, these data are likely to represent normal values for term newborns and can be the basis for comparison of umbilical serum anion gap in newborns under depressed conditions, like asphyxia. As discussed, the role of serum anion gap studies in the diagnosis of the type of metabolic acidosis, as well as in the monitoring of neonatal therapy is most important.
authors.affiliation: Zakład Rozwoju Płodu i Noworodka, Instytut Matki i Dziecka, 15-276 Białystok, ul. Skłodowskiej-Curie 24a, Poland.
authors.forename: Michał
authors.initials: M
authors.lastname: Jóźwik
authors.forename: Marcin
authors.initials: M
authors.lastname: Jóźwik
authors.forename: Bartosz
authors.initials: B
authors.lastname: Pietrzycki
mesh_terms: D000136:Acid-Base Equilibrium; D000838:Anions / Q000097:blood*; D005260:Female; D005312:Fetal Blood / Q000737:chemistry; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D012016:Reference Values
chemical_list: D000838:Anions