i was a CNA for years before I became a nurse. Don't worry about not knowing all of the abreviations right away. Like the other said, takes time. When I started out as a CNA, it took time for me to learn the job and all of the abreviations. When I am in chargeI most concerned that my patients are treated well and that they are given good care by my CNAs. I encourage them to ask me any questions that they may have at any time. Also if they need me to help them with something or show them something, they can always come and get me. :)