Learning Express Library is a resource which contains all kinds of information about careers. One of the handier aspects of this is the ability to practice licensure exams for various professions, including the following in the health sciences: RNs, LVNs, Pharmacy Technicians, Physical Therapist Assistants, Radiological Technologists, Surgical Technologists and Veterinary Technicians. Users can pause exams and track their progress. This video gives a quick guide on how to get to these exams. Requires creating a free account.
(The volume on this video is rather low -- you may have to turn your volume up to hear)