That's correct. In case, your medical profile has enough information, the exam won't be necessary on any instance. That's why your medical information must be as complete as possible.
I'm sure i won't need that, but it's good to know what it is. Could you tell me about its ultimate purpose?
Through this exam, we'll be capable to determine and rate your disability, based on your disability's severity. That will influence directly on how much you'll receive, and varying between monthly payments and enrollments on veterans health care programs.
Wow, that sound very  specific. Lets say i can't go for the exam. I know is better to not miss them, but if its something out of my control, what can you do to help me?