TY - CHAP M1 - Book, Section TI - Chapter 181. Physiology of Labor and the Postpartum Period A1 - Rédai, Imre A2 - Atchabahian, Arthur A2 - Gupta, Ruchir PY - 2013 T2 - The Anesthesia Guide AB - Table Graphic Jump Location|Download (.pdf)|PrintRespiratory SystemMinute ventilation during labor75–150% increase in the first stageOxygen consumption may increase by 45%Epidural anesthesia prevents changes in the first stage150–300% increase in the second stageOxygen consumption may increase by 75%Paco2 may fall to 10–15 mm HgSerum lactate risesEpidural anesthesia does not prevent changes in minute ventilation, oxygen consumption and serum lactate in the second stagePostpartumFRC increases after birth but remains below normal for 1–2 weeksO2 consumption, minute ventilation, and tidal volume remain elevated till at least 6–8 weeks postpartum SN - PB - The McGraw-Hill Companies CY - New York, NY Y2 - 2024/03/29 UR - accessanesthesiology.mhmedical.com/content.aspx?aid=57263397 ER -