If you live in OKC on the south side then I would go to Moore/Norman Tech. There are 2 ways to get the CNA from their. The first way is an attended class, the other is self paced and must be completed in 16 weeks. Cost is approximately $165 which includes all class materials, a stethoscope, blood pressure cuff. Most of the lessons are really common sense and with study time on the self paced course it makes it extremely flexable. Good luck.