title: Umbilical cord blood gases for term healthy newborns.
abstract: Examination of paired umbilical arterial and umbilical venous blood gases for 147 term, healthy newborns revealed a strong correlation of pH, bicarbonate, and base excess with the 1-minute Apgar score. Although significantly different from each other, a strong correlation existed between the gas measurements of the two vessels. The lower limit of pH for the umbilical artery was 7.12 and for the vein, 7.25. The arterial-venous difference for bicarbonate but not pH, oxygen or carbon dioxide tension, or base excess was correlated with the 1-minute Apgar score.
authors.affiliation: Department of Obstetrics, Louisiana State University, New Orleans 70112.
authors.forename: J M
authors.initials: JM
authors.lastname: Miller
authors.forename: M
authors.initials: M
authors.lastname: Bernard
authors.forename: H L
authors.initials: HL
authors.lastname: Brown
authors.forename: J J
authors.initials: JJ
authors.lastname: St Pierre
authors.forename: H A
authors.initials: HA
authors.lastname: Gabert
mesh_terms: D001034:Apgar Score; D001639:Bicarbonates / Q000097:blood*; D002245:Carbon Dioxide / Q000097:blood*; D005312:Fetal Blood / Q000032:analysis*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007231:Infant, Newborn; D010100:Oxygen / Q000097:blood*; D012015:Reference Standards
chemical_list: D001639:Bicarbonates; D002245:Carbon Dioxide; D010100:Oxygen