Finishing a degree in pre-med gives you the required BA needed for teaching in a primary school. The background you receive in science courses required for pre-med will allow you to specialize to teach in biology, chemistry, physics, or math. Each state has its own requirements for teachers, so be sure to look at the state's requirements before applying.
The background you receive in pre-med will give you the lab hours and course material needed for a research assistant position. These positions can be found at university labs or at entry-level positions in industry. You can look at classifieds in science-related industries for job openings and requirements.
Certain types of sales representatives require a background in the medical field. These positions usually have higher pay than standard sales representatives, as they require background knowledge and experience of the medical industry. You can look for jobs in this field by scanning classifieds in the medical and biotechnology industries.
Having a pre-med degree will not be enough to become a nurse. However, having the degree will be a major step towards getting certified as a registered nurse, or RN. Registered nurses require board certification and hands-on training for completion of the training. Being an RN will allow you to work in the medical field without the extensive years of study required to become a doctor.