The frequency of oxygen desaturation during emergency intubation is not uncommon. However, the significance and clinical sequalae of hypoxia during emergency intubation in critically ill, non-trauma patients is not known. Therefore, the aim of this study is to evaluate neurologic function post-intubation of critically ill, non-trauma patients. Providing knowledge on whether the degree of hypoxia during emergency intubation is associated with worse neurologic outcomes, will guide clinical practice to ameliorate that level of hypoxia