Phlebotomy Course & CNA ClassProctored exams are provided for staff members of St. John's United. Future courses to be announced. Prior to starting job as a CNA, students are often required to complete a health examination that certifies they are fit enough to perform the duties of a nursing assistant. https://sylvanlearningcenternearm65285.mappywiki.com/1064895/phlebotomy_course_cna_class_questions