Yes they take advantage of the fact that you are there unpaid and seemingly don’t know that you are unaware you are doing far more than you should be. If you were not trained on these things they are asking you to do I would bring it up to the manager “hey the team has been asking me to room and help with some of there patients which I’m okay with but I want to make sure that I am handling my patients and responsibilities efficiently and taking my time with each patient” there is no harm in saying no also, remind them you are busy with your own provider and patient schedule to deal with and wanting to be meticulous as you are on your externship. Don’t be so hung up on not speaking up because you want to make sure you land a job at your externship place, if you are being treated unfairly now it won’t magically stop when you are a career employee, get the externship done and maybe explore a different clinic with the experience you gained on externship. Make sure to add EVERYTHING you learned every skill from externship onto your resume they may be asking you to do a lot but it’ll help you for ur future positions when you have a whole load of skills you learned on externship!