How to Become a CNA. Certified nursing assistants provide supplemental services to nursing staff. They usually work in senior homes or hospitals, attending to patients who need help with bathing, using the bathroom, moving about, eating. CNA Career Basics. CNAs are on the front lines of providing basic care to patients in a variety of health care facilities, with responsibilities ranging from assisting with personal daily needs such as bathing and exercising to monitoring vital signs and dietary restrictions. If you are wondering how to become a CNA and are considering pursuing a job as a CNA, the next step is to learn how to get there. Simplified, there are 10 steps to becoming a CNA: How to Become CNA Certified. Complete high school diploma or GED. How to Become a CNA (Certified Nursing Assistant). CNAs (Certified Nursing Assistants) are professionals who help nurses by performing routine duties at hospitals and other care facilities. CNAs help bathe and clothe patients, check vital. How to Become a CNA Online. Healthcare is an ever-changing and exciting career field. New innovations and techniques are always being developed to improve patient care and outcomes. According to the Bureau of Labor Statistics, jobs in the healthcare field are expected to grow over the next several years as the population of the United States ages. Certified Nursing Assistants (CNAs) are healthcare professionals who provide intimate, hands-on healthcare to patients in medical settings under the supervision of a Registered Nurse , or Licensed Practical Nurse. CNAs assist patients with bathing, dressing and any other basic activities involved in daily life.