In the ACOG Practice Bulletin #106, which was released in 2009, the use of maternal supplemental oxygen for fetal heart rate tracing correction is mentioned. In that original bulletin, it states “despite inadequate data to support its use” consideration can be given to supplemental maternal oxygen for category II or III fetal heart rate tracings. However, within the last 7 years, an ever-growing body of evidence has proven that supplemental oxygen for fetal heart rate pattern abnormalities is not only ineffective but may actually be harmful to the premature fetus. Now, as of January 2022, we now have new guidance on this. Find out how and why the ACOG has now changed its original opinion.
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