the mean maternal venous lactate ( +/- sem ) in the latent and active phases of labour and at delivery were 1.07 ( +/- 0.09 ) , 1.45 ( +/- 0.12 ) and 2.69 ( +/- 0.24 ) mmol/l . the rise in fetal lactate throughout labour was due in part to the rise in maternal lactate .
C2985356
active phases of labour
C0022864
labour