RT Book, Section A1 Oppenheimer, Lawrence A1 Black, Amanda A2 Posner, Glenn D. A2 Black, Amanda Y. A2 Jones, Griffith A2 El-Chaâr, Darine SR Print(0) ID 1193312592 T1 The Second Stage of Labor T2 Oxorn-Foote Human Labor & Birth, 7e YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781260019414 LK obgyn.mhmedical.com/content.aspx?aid=1193312592 RD 2024/03/28 AB The second stage of labor lasts from the end of the first stage, when the cervix has reached full dilatation, to the birth of the baby. There are two phases: (1) the passive stage during which the fetus descends through the maternal pelvis, and (2) the active phase of maternal pushing. The duration of the normal second stage of labor is mainly influenced by parity and the presence of an epidural. The median durations of the second stage are given in Table 16-1, but there is a large range in duration.