USAF simpler
No "AIT", you do Basic, then Med Tech school, then duty assingment as a basic level med tech and contionue your eduication through correpondence courses as well as OJT. There are different flavors of med tech, some with accent on flight medicine, some with accent on other varieties, but all go through hospital experience. If you have an EMT you might be able to get part of the tech training waived; in 1980 I was able to go directly into med tech froom crash/fire rescueman because I had my EMT, I'd worked my EMT, and the Guard unit was at 68% manning. (When I got my nursing degree and license I went for and was commissioned).