This is my thought and opinion . I would assume that the person in the medical field will have to not be related to you . The Dr. or Nurse need to be non Bias of the patient . Treat the persons like they would to all normal patients after the basic physical exams and questioning.

I have not had a relative treat me, but my doctor growing up was a best friend to the family. He was exceptional.

Oh I'm aware of that. But you can ask questions.

I have too many MD's related to me. I believe that your not supposed to have relatives treating you, just think if something bad happened. It's not wise as to have a relative operating or working on you. It would be too hard emotionally, thus judgement might become impaired.
So relatives and friends refer me to the best people to work with me.

Simpler story my step dad is a former EMT I guess if I had something wrong I would have him help