A 66-year-old man presents with abrupt onset fever (39.2°C), pleuritic chest pain, and productive cough with rust-colored sputum. He denies recent antibiotic use. Vital signs show HR 102/min, RR 24/min, BP 138/88 mmHg, and SpO2 92% on room air. Examination reveals bronchial breath sounds over the right lower lobe. Chest radiograph demonstrates lobar consolidation. Blood cultures pending; sputum Gram stain shows gram-positive diplococci. Which organism is most likely responsible?
- A)Legionella pneumophila
- B)Streptococcus pneumoniaeGABARITO
- C)Klebsiella pneumoniae
- D)Chlamydophila psittaci
- E)Mycoplasma pneumoniae
Explicação
Streptococcus pneumoniae is correct. The abrupt onset of high fever, pleuritic chest pain, rust colored sputum, and lobar consolidation is the classic presentation of typical pneumococcal pneumonia. This organism is the most common cause of community acquired ... Ver explicação completa e trilha adaptativa →