title: The effect of intravenous ritodrine on the acid-base status of the fetus during the second stage of labour.
abstract: A progressive fetal respiratory acidosis occurs in the second stage of labour. A double-blind controlled trial showed that the intravenous infusion of Ritodrine abolished this.
mesh_terms: D000142:Acidosis, Respiratory / Q000517:prevention & control*; D002245:Carbon Dioxide / Q000097:blood; D002986:Clinical Trials as Topic; D004305:Dose-Response Relationship, Drug; D004874:Ergonovine; D005260:Female; D005865:Gestational Age; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007263:Infusions, Parenteral; D007748:Labor Stage, Second; D008614:Meperidine; D009609:Nitrous Oxide; D007744:Obstetric Labor Complications / Q000517:prevention & control*; D010100:Oxygen / Q000097:blood; D010313:Partial Pressure; D011247:Pregnancy; D011412:Propanolamines / Q000627:therapeutic use*; D012312:Ritodrine / Q000627:therapeutic use*
chemical_list: D011412:Propanolamines; D002245:Carbon Dioxide; D008614:Meperidine; D012312:Ritodrine; D009609:Nitrous Oxide; D010100:Oxygen; D004874:Ergonovine