Preferred Label : Arrest of Labor in Active Phase;
NCIt synonyms : Prolonged First Stage of Labor; Active Phase Arrest;
NCIt related terms : Prolonged Active Phase of Labor;
Alternative definition : NICHD: More than or equal to 6 cm dilation with membrane rupture and one of the following:
4 hours or more of adequate contractions (e.g. more than 200 Montevideo units), 6
hours or more of inadequate contractions and no cervical change.;