Your admissions interviewers need assurances that those they accept into their university are cut out for the work ahead, which means taking the good with the bad. Some less desirable aspects are unavoidable, especially in the medical field. Therefore, this question assesses how thoroughly you've explored and dedicated yourself to this career path. Assure them you are not easily intimidated or emotionally affected by the messier aspects of the job. Keep your answer simple. Exhibit your emotional stability to assure them you are cut out for the tasks ahead.