The simple answer is check with your local shop. In the end they make the final decision, since their instructor is the one signing off on the certification. With that being said, we train Public Servants from all over our state and several northern states as well. And per the current PADI standards, any one holding a Basic EMT or higher certification is exempt from taking the CPR / First Aid / AED course, in PADI terminology the EFR course, with the exception of if they decide to go professional they are required to have the EFR Instructor rating. I am not only a Scuba Instructor (Course Director) I am also a Level 1 EMT Instructor for the State of North Carolina. When I teach rescue students with medical training backgrounds, EMT or higher, I simply make a copy of their credentials and put it in their student folders. Lastly, what I find interesting is, PADI will allow, per their standards, EMT's and higher to assist with teaching in the EFR certification including CPR / First Aid / AED, yet they leave it up to the individual instructors on whether or not they will certify a Rescue Student who does not hold the EFR certification even if they are certified EMT's, Paramedics, Nurse, Doctor, etc. Basically they are saying they are qualified to teach the course but not qualified to earn the certification. PADI (Put Another Dollar In)
P.S. If you are close to North Carolina, come see us, I will guarantee if you are a certified nurse, we will make sure you are exempt from taking the EFR course, and you can go straight to Rescue.