My first appointment with the neuro.
the first thing he done was history, taking notes too build a picture, work,family history ect. then he asked how i noticed things over the course of time, he could see my tremor(but that in itself isn't a diagnosis) so a examination followed, observation of how i walked,turned,gait,posture, my expression, my eyes, hands at rest , reflexes, finger too nose, palm too palm, dexterity , slowness of movement ect.
and then we sat and chatted, he asked me had i heard of parkinsons and then he said at the core of my problems he thought parkinsons, but around the edges i have other problems. No deff diagnosis that day.
I'd had all the blood tests & tests at the Gp's (Including how yours mood??) to get referred too this point.
I was then sent for another blood test for Wilsons disease (copper poisoning) essentially as some symptons mimic PD.
then nerve conduction tests i believe partly too rule out MND.
then a MRI which came back as expected clear.
And finally a Dat-scan which confirmed patchy reduced uptake , hence PD diagnosis.
All of this took the best of a year, so dont be disappointed or afraid if you don't get a def diagnosis on the first visit.