CNA Training gives someone the qualifications to become a certified nursing assistant. Duties of a certified nursing assistant will vary somewhat day by day. This small list is similar to what most CNAs would have to do; seeing to patient calls, helping with the patients mobility, preparing patients for surgery, cleaning up after patients. In pretty much all cases, the basic duties of a CNA will be to provide bedside care, and to be responsible for basic nurses duties. That being said, the CNA is an important part of any health care team. It’s also an important thing to know that a CNA must, under law be supervised by a registered nurse to work. This makes total sense of course, as it’s to do with legality and liability.