@yakutatcharters, I recommend calling Mayo Clinic to ask for their recommendation of where to get the test your brother needs. I'm not sure which number is best to call, but here are a few options to try:

- The Mayo Clinic department to which your brother is referred.
Do you have a contact person on any of the communication you've had with Mayo thus far?

- The Mayo Clinic patient portal
Does he have a patient medical number (MRN)? Does he already have an account on the patient portal (Patient Online Services)? You may be too early in the process to have this yet.

- Mayo Clinic Laboratories https://www.mayocliniclabs.com/customer-service/contacts
Mayo labs may be able to provide more information and locations.

- Mayo Clinic Concierge Services https://www.mayoclinic.org/patient-visitor-guide/minnesota/concierge-services
Theconciege services can answer a wide range of questions. They may be able to help you find what you need or direct you to the right person to ask.

- Mayo Clinic Appointments https://www.mayoclinic.org/appointments
Call the Mayo Clinic location that is considering your brother's application

I hope this helps. By getting exact details on what is required for your brother's appointment, it would be best to get clarification directly from Mayo Clinic.