Since the patient is confused, I do my usual assessment for orientation, memory, etc. When I walked into the room her nurse followed me. She was a new hire I'd never seen before.
So I went in, introduced myself to the patient, and started: "Mrs. Jones, do you know where you are right now?"
Before Mrs. Jones could answer Nurse Dingbat, with a look of astonishment, said "We are in the hospital, Doctor."