Read your comments again. Maybe the staff nurse is getting muddled with the loss of sensation some diabetics experience. If she thought it was given correctly sounds like it was wrong.Refer her back to when the student first mis-administered your medication. Should be signed on your drug chart...
She is a student, she needs to listen and learn. We are all allowed to make REASONABLE mistakes. Couldn't she try on an orange. No one is benefitting by letting this pass. May be have a word with her mentor.