619. Define preterm or premature labor / Premature labor risk factors / Studies to get in preterm labor / Indications and contraindications to tocolysis November 6th, 2008 by reuben in pregnancy, PVD Back Top Tags: card 618. What is the fourth stage of labor? What do you do? / Adjuncts to normal delivery: yes or no: NPO/IVF, enema, shaving, nitrous oxide, narcotics, regional anesthesia, electronic fetal monitoring, ultrasound, amniotomy, episiotomy, Ritgen 620. Agents used for tocolysis / What is the success rate of tocolysis? / Adverse effects associated with magnesium / Treatment of mag toxicity / Define premature rupture of membranes (PROM) Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.