MCQ – 88228


A 30-year-old man presents with a 1 week history of fever, sore throat, swollen lymph nodes, weight loss, and fatigue. Physical examination shows generalized lymphadenopathy, most prominent in the cervical lymph nodes, and mild hepatosplenomegaly. The peripheral blood smear shows 65% atypical lymphocytes. A Paul-Bunnell antigen test (heterophile antibody test) is positive. The serum ALT, AST, and bilirubin are slightly elevated. The atypical lymphocytes in this patient’s peripheral blood are described as which of the following?


 Activated T cells


Immature B cells


Mature B cells

D. Natural killer cells

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