Route 3: Work Experience. Applicant shall have been employed as a medical assistant for a minimum of five out of the last seven years, no more than two years of which may have been as an instructor in a post-secondary medical assistant program.Work experience must include both clinical and administrative duties.pplicants whose date of graduation is four years or more prior to the date of their application must also provide evidence of relevant work experience for at least three of the last five years. 1  Applicants must have graduated from their academic programs within the past four years.