The effect of maternal oxygen administration on fetal pulse oximetry during labor in fetuses with nonreassuring fetal heart rate patterns. Prophylactic intrapartum amnioinfusion inpatients with preterm premature rupture of membranes.
Onset of the decleration occurs after the beginning of the contraction, and the nadir of the contraction occurs after the peak of the contraction. Am J Obstet Gynecol.
Washington, DC: The duration is quantitated in minutes and seconds from the beginning to the end of the deceleration. Routine care. Uterine contractions are quantified as the number of contractions present in a 10-minute window, averaged over 30 minutes. Category II: Discontinue oxytocin.
Fetal scalp stimulation can be used to induce accelerations. Am J Obstet Gynecol 1985;153: The fetal heart rate tracing shows ALL of the following: Am J Obstet Gynecol 1978;131: Late Decelerations Late decelerations associated with preservation of beat-to beat variability These decelerations appear to be mediated by arterial chemo receptors in mild hypoxia.
Category III: The nadir occurs with the peak of a contraction. Position change andcentral hemodynamic profile during normal third-trimester pregnancy and post partum. Is fetal heart rate variability a good predictor of fetal outcome?
Arias F. Periodic patterns are those associated with uterine contractions. Check for cord prolapse or imminent delivery by vaginal exam.