[Verified Answer]: Your patient today informs you that she is…

Your patient today informs you that she is fine with the deep cleaning but is scared of “the shots.” You discuss the use of nitrous oxide/ oxygen (N2O/O2) with the patient, and she is willing to try it. You begin administering 45% N2O, and 2 minutes upon delivery of N2O/O2, the patient reports feeling lightheaded and her lips are tingling. Then 15 minutes into the procedure, the patient is no longer responding to your voice and appears to have fallen asleep. With a stern shake, you are able to wake her, and she tells you that she is beginning to feel nauseated. Critical Thinking Questions 1. What is the first course of action? 2. At what point is a deeper level of sedation noted? 3. What could have been done to prevent this event?