Final answer:
The nurse is evaluating macrophages, which are phagocytic cells that destroy parasites and intracellular pathogens.
Step-by-step explanation:
The nurse is evaluating macrophages. Macrophages are phagocytic cells that ingest and destroy pathogens. They contain cytoplasmic granules which aid in the destruction of parasites and intracellular pathogens. Macrophages are agranulocytes and are part of the immune response.