A 15-Year-Old Girl Is Evaluated Due to Persistent Fever, Fatigue

question 327

Multiple Choice

A 15-year-old girl is evaluated due to persistent fever, fatigue, and sore throat.  Physical examination reveals splenomegaly and symmetric posterior cervical lymphadenopathy.  Peripheral blood smear results are shown in the image below: The atypical cells seen here are most likely an activated form of which of the following?

• A)CD4⁺ Helper lymphocytes
• B)CD8⁺ Cytotoxic lymphocytes
• C)CD14⁺ Monocytes
• D)CD21⁺ Lymphocytes
• E)CD27⁺ Plasma cells

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Definitions:

Marginal Product

The increase in output that results from employing one more unit of a specific input, while holding other inputs constant.

Labor Input

The quantity of labor employed in the production of goods and services, usually measured in hours worked or number of workers.

High Productivity

A state of achieving significantly greater output per unit of input, reflecting an efficient and effective utilization of resources.

Large Amount

A term used to indicate a significantly high quantity or volume of something.