On your first appt your rheumy should ask you a ton of questions about
your symptoms and family history. He/she should examine your skin, joints, hair and possibly check your lymp nodes. I am sure they will run some lab tests and check your urine. My first appt was over an hour but I know all doctor's are not like mine
. I would suggest you make a list of all of your symptoms make a note of when they started and if anything makes them better or worse. Also make a list of your questions and any meds you are currently on, this way you won't forget anything.
I hope your appt goes well, don't expect a dx on your visit. Please let us know how it goes. Take care