A comprehensive hearing assessment measures two different things: the softest sounds you can hear at each pitch, and how well you make out words. They are not the same measurement, and the gap between them is why someone can insist the room is loud enough and still miss half of what was said.
The appointment also includes looking in both ears and, when the picture calls for it, a middle-ear test (tympanometry) that shows whether the eardrum and the space behind it are moving normally.
What comes out is an audiogram and a recommendation. That may be hearing aids. It may be a medical referral, wax management first, or nothing yet except a baseline to measure against in a few years.