1. A disoriented postoperative male patient breathing room
air exhibits tachypnea, tachycardia, and mild cyanosis of the mucous membranes.
Using a pulse oximeter, the RT measures the patient’s oxyhemoglobin saturation
as 90%. What should the RT recommend to the patient’s surgeon?
2. An air-entrainment device mixes at a fixed ratio of three
volumes of air to each volume of O2 (3 :1 ratio). What is the