Certified nurse assistant programs require between 14 and 19 credit hours of course work for completion, according to Study.com. Accredited programs also require students to pass a certification exam.
The actual number of credit hours required to complete certified nurse assistant programs varies across programs and according to individual state requirements for practice, according to the American Red Cross. A 75-hour national certification program is available through the National Association for Home Care and Hospice, notes Study.com. Certified nurse assistant training programs include clinical training in addition to course work. Cardiopulmonary resuscitation certification is an additional requirement for certified nurse assistants, according to Study.com and the American Red Cross.