The nurse is employed by the Food and Drug Administration (FDA), and is involved in clinical investigation. What is the primary role of the nurse in this phase of the review and approval process by the FDA?
1. To perform tests on the population-at-large
2. To perform tests on various species of animals
3. To perform tests on human cells cultured in the laboratory
4. To perform tests on human clients
Correct Answer: 4
Rationale: Clinical investigation includes performing tests on healthy volunteers, and later, on selected clients with a particular disease. Performing tests on human cells cultured in the laboratory is the preclinical investigation stage. Performing tests on the population-at-large is the stage of post-marketing surveillance. Performing tests on various species of animals is the preclinical investigation stage.
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