I think that health teachers and all teachers for that matter, should definitely not let the concerns of a student who has been raped go ignored. When something horrible like this happens, they may feel like they have no one to turn to other than the teacher and may be suicidal from what has happened.
No, health care teachers should not care more about students who are raped, because health care teachers are already very sensitive to these issues. The vast majority of teachers care very sincerely for their students, and would not wish to offend anyone. If a student has a concern, it can be dealt with on an individual basis.