Asthma USMLE Step 1 Practice Question
A 62-year-old man with alcohol use disorder and poorly controlled diabetes (HbA1c 9.2%) presents with fever (39.1°C), dyspnea, and productive cough. Vitals show BP 128/82, HR 104, RR 22, SpO2 94% on room air. He produces thick, blood-tinged sputum described as currant jelly. Chest X-ray demonstrates right upper lobe consolidation with bulging fissure. WBC is elevated at 14,200/μL. He denies hemoptysis beyond sputum streaking. Which organism is most likely responsible?
Answer choices
- APseudomonas aeruginosa
- BPneumocystis jirovecii
- CMycoplasma pneumoniae
- DStaphylococcus aureus
- EKlebsiella pneumoniaeCorrect answer
- FLegionella pneumophila
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