Oxytocin Dosing at Planned Cesarean Section and Anemia

Inclusion Criteria: * Planned cesarean sections for singletons at or greater than 37 weeks gestational age * Primary or repeat cesarean section will be included Exclusion Criteria: * Multiple fetal pregnancies * Hematologic disorders * Fetal anomalies * Pre-eclampsia. These patients are at increased risk of fluid overload and so fluid status may be affected by receiving a second bag of fluid containing oxytocin in the postpartum period. * Known contraindication to oxytocin * Hypersensitivity to oxytocin * Patients who have labored and then proceed with cesarean section for any reason. Patients who have labored have had either intrinsic or extrinsic exposure to oxytocin. These patients may have decreased sensitivity to oxytocin.