They'll review your paperwork packet and do a drug test as well, and if you pass and they're up to your list number then you have between then and 90 days to be called for your medical appointment, if they dont call you for your medical appointment then you'll be called for pre employment again to do the paperwork and drug test all over again. My advice is to make copies of all you paperwork you're bringing in so that way if they call you again you can just copy what you wrote previously, unless something changed.