It could be in health science but it belongs to a specific department. For example, medical technology major belongs to the School of Health Professions at University of Arizona:
http://catalog.arizona.edu/geninfo/college/974/HR.shtml
http://medicine.osu.edu/hrs/mls/pages/index.aspx
You can google “medical technology major college_name” to find the specific program at each college.
Life science is too general.