She works as an anesthetic nurse.
Following her words.

When people after operations and anesthesia are brought to the general chamber, they are observed by staff at the time of "retreat" after anesthesia. Usually the doctor comes and asks general questions: how well-being, what day today, etc. The goal is clear: to assess the patient’s condition. Since some patients may begin to get stupid and inadequate, and such individuals can harm themselves and other patients in the department.
If there is a suspicion of the patient's bullying, especially coupled with hallucinations, then with the help of bandages they are fixed to the bed, for their own benefit.

They bring a young man to the room. The guy comes to himself. To him fits a doctor and my acquaintance (which is an anesthetic nurse).
The doctor asks him on duty questions and the guy answers them appropriately.
But then suddenly he gives the phrase, “Doctor, I wanted to tell you... you have a dove walking around the chamber.”
The nurse and the doctor looked deeply, shrugged their heads. Without unnecessary words and gestures (the experience of joint work, it is) it became clear: you need to bind.

And here from under the patient’s bed comes a real pigeon.)