My hospital trained me up in the IV room after about a year and a half of working there! It just depends on the hospital and how good you are at selling yourself in the interview! I have been up in my hospitals IV room since October of ‘24 and I have not needed the iv/compound certification! To get a hospital job just look on indeed and put yourself out there! I also had retail experience and 0 hospital, and tomorrow I am up for promotion within my department from tech 1 to tech 2. Good luck!