I would definitely suggest it, even if you have done other clinical work . I was at an interview and have done tons of clinical work (have been in a clinic working with pts/rns/mds for 2 years) and after explaining everything i do at my job, my interviewing asked me if i had done any shadowing...now: he obviously had a list of questions to ask and i think he was more focused on taking notes on my answers rather than listening to what i was saying (as i think they all did - someone else interviewing the same day w/ different interviewer got asked the same question and he does clinical work also)....so...to make a long story short: just put it down, talk briefly about the types of things you've done, see, etc....it can't hurt!
Good Luck!
