Hi Ed. Welcome to the place we don't want to be. But an excellent place to find/receive information. Your story is close to mine. A rapid, unexpected flow of blood. An ER visit, sample, and visual observation with a recommendation to see a urologist. In all, about 5 weeks from uro visit to TURBT, and becoming a BC patient. Correct, you are seeing someone you don't know, entering into the unknown. Your initial "trust" is that he/she is capable to perform that 1st TURBT and get the tumor evaluated (good, or bad). Now you know where you stand, and how to proceed. The best recommendation will be to get a 2nd opinion.
My uro did 2 TURBT's, but I wasn't happy with him, so switched to another uro (not a specialist), who handled my situation much more effectively.
Use your anxious wait time to research other uro's, or possibly a specialist, for that 2nd opinion. You're on the right track of 'doing something'. Once results are in, you'll have better info on the specific condition and how to proceed. Keep us posted, and questions are welcome.