Câu 57: USMLE: United States Medical Licensing Examination

A 50-year-old male who is a known alcoholic is brought to the emergency department by police. He complains of a productive cough with thick, bloody sputum. Vitals reveal a temperature of 38ֲ°C (100.4 ֲ°F). Physical examination reveals dullness to percussion, increased tactile fremitus and decreased breath sounds over the right lung fields. A chest radiograph is obtained which reveals consolidation in the right upper lobe. The most likely cause of these findings is a

1. A. gram-negative oxidase-negative bacillus — đáp án hiện tại
2. B. gram-positive oxidase-positive bacillus
3. C. gram-negative pleomorphic bacillus
4. D. gram-positive catalase-negative coccus
5. E. gram-positive catalase-positive coccus