Like previous responder, we have one area where we perform both Phase I & II, and from which pt is discharged home, or taken to floor. We also discharge by criteria (Aldrete score), and additionally, pt needs to be off oxygen (on room air) for at least 30 minutes and maintain SaO2 of > 92% to be discharged. Pt can be sent to floor on O2 if unable to maintain SaO2 of 92% on room air, providing still has Aldrete of 8 or higher.