The purpose of this study is to identify patient and provider-chosen factors that put patients at risk for the development of hypoxemia (oxygen saturation \< 90% for 5 seconds) during endoscopy and to use this knowledge to develop a treatment protocol for specific causes of hypoxemia in adult esophagogastroduodenoscopy outpatients.
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Incidence of laryngospasm during EGDs
Timeframe: 2 hours
Identify risk factors for the development of hypoxemia during EGD
Timeframe: 2 hours