I found teaching medical vocabulary though taped medical TV shows best. I recently pulled up a show of Private Practice and then created a sheet with the vocabulary words specifically for that episode. (Grey's Anatomy would work perfectly too!) When I began the tutoring session, I explained the premise of the show. Then I gave the student a vocabulary sheet and then turned on that episode. I encouraged this student to watch medical shows to enhance her vocabulary.
Please note: This lesson is best used with adult intermediate to advanced intermediate English language learners.