Final answer:
The applicable nursing diagnosis is Anxiety. The nurse should address the student's concerns and provide reassurance about the anesthesia process.
Step-by-step explanation:
The nursing diagnosis applicable to Ms. Waller's concerns about anesthesia and vomiting would be Anxiety. Anxiety is a common response to a surgical procedure, especially when it is the patient's first time. In this case, Ms. Waller's fear of vomiting is likely contributing to her anxiety.
The nurse can respond to Ms. Waller by acknowledging her concerns and providing reassurance. The nurse can explain that anesthesia professionals take measures to prevent vomiting during surgery, such as administering anti-nausea medication. The nurse can also offer additional information about the anesthesia process to help alleviate Ms. Waller's fears.
It is important for the nurse to provide emotional support and educate Ms. Waller about the steps taken to ensure her safety and comfort during surgery. By addressing her concerns and providing accurate information, the nurse can help alleviate Ms. Waller's anxiety and build trust.