Maternal oxygen administration for concerning fetal heart rate tracing (FHT) patterns is common practice on Labor and Delivery units in the United States. Despite the broad use of oxygen, it is unclear if this practice is beneficial for the fetus. The purpose of this study is to compare oxygen to room air in patients with Category II fetal heart tracings with regard to neonatal acid-base status, subsequent tracings, and production of reactive oxygen species
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Mean Umbilical Artery Lactate at Delivery
Timeframe: At delivery