It would surprise me if a proposed treatment was based on the result of a single test result. As a patient of KDM I know what an extensive testing he does at the first consultation based on a questionnare, earlier lab testing and an interview about sick history. I never saw a doctor with the same presence during this first appointment. When you have booked an appointment you get a letter with information and a message of the expected cost for the tests so they shouldn´t be a surprise. The costs for every single test are in accordance with the costs at a private specialist in my country.
It is possible to bring lab results from e.g. your GP to bring down the cost. If you have been examined for e.g. thyroid problems earlier you can just exclude this part of the tests. You always sign and agree to the proposed lab tests. On request KDM motivates any tests.
In my opinion the above quoted formulation is insulting and desinformation.
@Theodore , not your fault. You just asked about an opinion.