Organ System Pathology USMLE Step 1 Practice Question
A 58 year old man with alcohol use disorder is brought to the emergency department with fever, dyspnea, and productive cough. He appears toxic, and chest imaging shows dense right upper lobe consolidation with bulging fissure. His sputum is thick and blood tinged. Which of the following is the most likely causative organism?
Answer choices
- AMycoplasma pneumoniae
- BKlebsiella pneumoniaeCorrect answer
- CPseudomonas aeruginosa
- DStaphylococcus aureus pneumonia
- EStreptococcus pneumoniae
- FLegionella pneumophila
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