Evaluation of Extubation Criteria in Children With Upper Respiratory Infection (URI)

Inclusion Criteria: * All study participants must be undergoing general anesthesia and surgery with an endotracheal tube * The URI group will be participants with a score of at least 3 on our pre-operative URI survey, with planned airway instrumentation with an endotracheal tube (ETT) for their surgical procedure who are to be discharged same day or on postoperative day 1. * The non URI group will be participants undergoing elective procedures with no URI symptom or recent URI. Defined as no URI or "allergy" symptom within the past 6 weeks and a score of 1 or less on the URI survey, with planned airway instrumentation with an ETT for their surgical procedure who are to be discharged same day or on postoperative day 1. Exclusion Criteria: * History of home oxygen use or ventilator dependence, * Patients undergoing emergent procedures. * Patients with cyanotic congenital heart disease. * Patients receiving a surgical procedure where the duration of post procedure * admission is anticipated to be greater or equal to 2 postoperative days. * Patients undergoing anesthesia for imaging procedures alone. * Patients who are extubated deep intentionally. * Patients intended to be managed with supraglottic airway. * Patients undergoing total IV anaesthesia (TIVA).