Visiting the doctor for your friend

A friend of yours asks you to go with her/him to the doctor for an exam. You say yes. While staying there, after two or three coughs you do the doctor says he wants to listen to your chest to make sure everything is ok with your lungs. How do you feel/react?

I would say “OK”, strip to my waist, then sit on the table while he did the chest exam. I'd also make sure my friend saw my bare chest.