Do you think she likes me?

There's this girl at my doctor's office, I think she might be a nurse or something. Anyway, the other day I went to the doctor and she took me back to a little room that had a little paper covered bed in it. She gave me a very revealing robe thing and told me to get undressed, that she would be right back. I put on the robe and realized it was open in the back! Why would she want me to have my backside exposed?