From time to time we host medical students in the practice. Sometimes these are 1st or 2nd years who sit in with the GP or nurse and observe the consultation. They might ask patients some initial questions.
We also host 4th or 5th year students on a longer term placement. They see patients and then discuss what they have found with the GP before the GP sees them.
It is really helpful to the students, in whatever year of study to meet real patients and learn communication and consultation skills as well as practical examinations.
At any time the patient can say they do not want to see a student. It is your choice. Just tell reception when you have booked in or tell the student or GP you do not want a student to see you.