Well, they wouldn’t show this on TV, but there are times it’s nice to have the doctor perform the procedure. During my last stay, they needed to insert a catheter. The nurse jammed it in and it stopped. She yanked it out and tried again. I put up with this torture four times, then as she prepared for a fifth onslaught, I told her to stop and call a urologist. She called the supervising nurse who agreed with me. The urologist explained that I had a kink in my urethra, but nurses were not allowed to use the bent catheters (at least in that hospital). He slipped it in very nicely, and I had no problem. However, most of the nurses were quite professional and pleasant. I made it a point of not bothering them, but always asking to explain what they were doing when they had to do something, and they were quite willing to do so.
You were patient, the nurse was probably very new (or not very good), an experienced nurse would have called her charge nurse to assess the situation. Good/experienced nurses don’t perform what I call ‘search and destroy missions’ something I always emphasize when teaching new nurses. You are your primary advocate—good for you for insisting—bad for her that she did not think to ask for help herself.