CNA School is very important for anyone looking to become a qualified nurses assistant. The duties of a certified nursing assistant will vary a lot, as their job covers many areas. The following is a basic example of what most CNAs would do day to day; cleaning up patients beds, seeing to patients calls, moving patients, and “prepping” patients for surgery. For the most of it though, the 2 basic aspects of a CNA will be giving bedside care, and completing basic nurse duties. Having said that, the role of a CNA is still very important in any health care group. It’s worth knowing too, that a CNA must be under the work supervision of a registered nurse to work. No doubt, this is because of the legal and liability factors involved with the health system.