A mobile anesthesia system has a patient support configured for use with a robotic patient positioning system. There is a sliding rail system disposed on the patient support and an anesthesia machine coupled to the slide rail system. Through use of the rail system(s) on the patient support a anesthesia machine may move relative to a patient support from a stored configuration clear of the patient to a treatment configuration above the patient. A method of providing anesthesia to a patient positioned to receive a robotic assisted radiation therapy is also described. The method proceeds by positioning a patient on a robotic couch in a location remote to a radiation therapy treatment room used to perform the robotic assisted radiation therapy. Next, anesthesia is administered to the patient from an anesthesia machine attached to the robotic couch while both the patient and the robotic couch are in the location remote to the radiation therapy treatment room. Thereafter, the robotic couch is placed under the control of a patient positioning system in the radiation therapy treatment room. The patient and the robotic couch are then maneuvered into a treatment position while administering anesthesia to the patient from the anesthesia machine.
