From Sun to Wed you will get your uniform, visit the clinic and fill lots and lots of paper work, including your USA visa application and some people might need visa for some other countries, it all happens the first four days, on Thu it's the first day that you will attend the S.E.P. training and on the week end you will probably have to study for some test for the next Sun, and you will be tested every 2nd day at least.
During the very first week you will already start using your uniform, probably by day 3 or 4, so, the very first days you will have to wear something formal and business like, take what you had at the interview.
God Luck !!!
Leo