How does a diagnostic procedure for adult autism go?

I am just trying to get a diagnosis on whether or not I have autism at 28 years old.

I already have a diagnosis on OCD and DPDR, for at least 8 years now. Many traits however also strongly suggest autism, and my family would be hopefully more understandig with my "quirks" if I had that stamped paper from a professional and all.

Since my therapist couldn't really help me out yet, I would like to ask here: how exactly an adult autism diagnostic procedure goes?

Do I take tests, or need to have therapy sessions with an expert? How long it usually takes to get a diagnosis? What to expect?

Thanks in advance <3

Parents
  • It varies enormously. The NHS procedures, in general, are the longest, employ the largest number of clinicians and rely the most on testing. Private assessments usually involve fewer clinicians, often just one. In my opinion there is also a decided difference between psychiatrist-led and clinical psychologist-led assessments, with the former more reliant on patient history and the latter more reliant on tests and observation.

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  • It varies enormously. The NHS procedures, in general, are the longest, employ the largest number of clinicians and rely the most on testing. Private assessments usually involve fewer clinicians, often just one. In my opinion there is also a decided difference between psychiatrist-led and clinical psychologist-led assessments, with the former more reliant on patient history and the latter more reliant on tests and observation.

Children