Entry-level health science jobs focus on the study, research, and application of healthcare or medical practices. For example, the common duties of a research assistant or lab technician are to assist with laboratory tests for a clinical trial. The responsibilities of health scientists in a clinical or laboratory setting include collecting, examining, and assessing samples for medical purposes. An entry-level health science worker can also find employment in the field of public health, where they perform duties related to health education or medical services planning, or with pharmaceutical companies.