A 23-Year-Old Woman Is Evaluated Due to 10 Days of Nonproductive

question 190

Multiple Choice

A 23-year-old woman is evaluated due to 10 days of nonproductive cough, low-grade fever, headache, and malaise.  The patient has no other medical problems and takes no medications.  Lung examination reveals scattered rales.  Chest x-ray reveals bilateral patchy areas of consolidation.  She has mild anemia and an elevated serum lactate dehydrogenase level.  The patient is treated for presumed Mycoplasma pneumonia with azithromycin.  Two months later, her symptoms and the anemia have resolved.  Which of the following best explains the resolution of this patient's anemia?

• A)Elimination of bacterial cell wall antigens
• B)Elimination of intraerythrocytic microorganisms
• C)Fading of immune response against the bacteria
• D)Replenishment of body iron stores
• E)Replenishment of intracellular enzyme stores

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