Class EM teaching on pre-oxygenation prior to RSI is that we need SpO2 values at or above 93% for at least three minutes to assure adequate de-nitrogenation. But is this 3 minutes actually enough? Is SpO2 the best measure of de-nitrogenation or is there something better? Our anesthesia colleagues use EtO2 for this purpose. The episode of the Podcast reviews a paper in the October edition of JACEP Open in which Dr. Oliver and colleagues evaluate exactly this question. Tune in to hear all about it and be sure to download the paper for free at the JACEP Open website.

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