The interviewers want assurances you are well equipped to manage the more difficult sights and experiences you'll encounter in your medical career. You'll want to assure them that you have thought through your pursuits and are well suited to every aspect of the work involved. Share examples of where you maturely and objectively handle situations involving blood, bodily fluids, and the job's more messy and squeamish aspects. If there have been instances where you proved as a support for others who didn't handle such situations as well as you, share those! Doing so will exhibit your fortitude, team mentality, and leadership potential.