title: ACOG technical bulletin. Umbilical artery blood acid-base analysis. Number 216--November 1995. (Replaces No. 127, April 1989).
mesh_terms: D000136:Acid-Base Equilibrium; D000137:Acid-Base Imbalance / Q000097:blood; D005260:Female; D005333:Fetus / Q000502:physiology*; D006801:Humans; D011247:Pregnancy; D012016:Reference Values; D014469:Umbilical Arteries / Q000737:chemistry*