2 Weeks Of Fatigue, | White Blood Cell Abnormalities (Assessment & Diagnosis) — 27yo Woman | Hematology | MCCQE1 Q#13431

MCCQE1 Question #13431

Dimension of Care

Acute Care

Activity

Assessment & Diagnosis

Objective

White Blood Cell Abnormalities

Section

Medicine / Family Medicine

Subject

Hematology

Last updated: February 2026
A 27-year-old woman presents with 2 weeks of fatigue, sore throat, low-grade fevers, and decreased appetite. She has no cough, urinary symptoms, or recent travel. She takes no medications and has no past medical history. Examination reveals bilateral posterior cervical lymphadenopathy, mild splenomegaly, and an erythematous oropharynx without exudate. A complete blood count shows leukocytosis with lymphocytosis, and a peripheral blood smear reveals large atypical lymphocytes. Which diagnosis best explains this white blood cell abnormality?
Full answer analysis and choices are available inside the practice session.