Everyone's case is unique and depends on type of specialist your seeing and testing required,
but it is very likely they will start some tests on Friday. With a few exceptions, Mayo outpatients areas are normally are not open on weekends.

Were you told to fast prior to first appointment in case they want to do blood tests? You usually can have blood test done same day. Imaging tests sometime take longer to have done depending on type of tests and availability of resources. And if need more complex tests like GI tests that require preparations, those will be scheduled in future, maybe the next week.

The good news, is once you have test done, the results are usually available the same day.

Have you created a sign on on Mayo Portal? If you sign on you may see some tests already have been scheduled or your doctor may want to see your husband first to determine what is needed.

Have you sent previous medical records to Mayo? or bringing them with? Even though tests has been done at another location, Mayo may want to repeat.

Good luck
Laurie