CNA/UAP/PCT - whatever they are calling them this year.
As for bettering your chances, absolutely it helps. I know many places that prefer to hire their techs because they already work with the staff, they know your work ethic, you are a face they know, versus a piece of information in the vast never ending world of resumes from dozens of applicants.
Plus you know the floor, you are familiar with the department managers, and etc.
It can only benefit you! If the unit you are working isn't hiring new grads at the time you are ready to begin work, at least you have someone willing to vouch for your work ethic if you need to go to a different unit within the same facility.
Best of luck!