In the ER's I rarely am mis addressed as to my title unless there is a "rent a nurse" working. Yes "rent a nurses" happens in one hospital in my area quite often as a money saving factor.
"rent a nurse" is definitely not cost saving through the registry. The hospital has to pay the agency and a very good wage to that nurse. Using "rent a nurse" is one of the biggest budget busters in the industry. You will also find that a hospital is staffed throughout,, RNs, RTs, Radiology, PT etc with registry or travelers that may make up to 20% of the licensed staff in some hospitals especially during "season". Many of these "rent a nurses" are from other states/countries where the certifications for EMS might be totally different. So, no, they may not be familiar with the local EMS system.
So you have the advantage on some professions by already being familiar with hospital workers. You may also be an outgoing type of person that readily tells someone who you are right away. My point is not everyone is as well versed on the correct terminology of other professions because it is changing all the time. Many EMTs don't know how many different professions even exist in healthcare. I'm amazed at the number of certifications and titles in EMS. Florida has 2, Alabama has 3 and Washington State has 6 different titles or certifications for EMTs. And, there is not that much education or skill separating some of the certifications. The patches that used to be readily identifible for EMS/Fire change also. Florida finallly started recognizing the NR.
Name badges help with the name but there is still an alphabet soup behind it. In the city, we may have 20 different services coming to our ER at any given time with different uniforms, multiple titles and various credentials. There are paramedics like myself that have multiple licenses and credentials. When I worked on HEMS, my tag read RRT, EMT-P, CCEMT-P, FP-C. The CCEMT-P isn't well known also. Some use NREMT-P. When working in the hospitals the EMT-P is not a recognized credential so that is not on my tag but I have another list of credentials and certifications for RT. Some agencies allow paramedics to put their whole alphabet soup on their tags. When you get all the specialty certifications on there, it can be confusing. So it is not just the different levels that are create problems identifying different EMS professionals.
Many RNs in Florida have EMT-P behind their name especially if they do HEMS. They want to addressed by their nursing title and not as a paramedic. They may have challenged the paramedic exam to stay flying and to them it may be just another certification. Some were paramedics and then nurses. I usually use the first title if I can recognize what that is with the many different professions.
So with a progressively changing medical profession, don't expect the world to stop just to learn all the pre-hospital worker titles. New certifications seem to appear every few months. Other professions also have the different levels but manage to deal with it when someone addresses them incorrectly by politely correcting them or moving on. The patient is the priority, not someone who needs his/her ego stroked appropriately.
The RT profession, when a title offended us because it represented a lower education and certification, raised the educational standard and eliminated that title. The technology is changing rapidly in the RT/healthcare profession where we can not have the "lesser" trained/educated credential or individual.
The 15 pages spent talking about this on this forum could have been put to better use writing your State board about education standards and cleaning up the alphabet soup into a recognizable profession. The plans for EMS and the Paramedic that were started in the college systems in the 1970s have yet to be achieved. Seems like the EMS industry does a lot of projecting their issues onto others instead of taking care of their own problems. No need to criticize others if your profession has issues within itself.