A 23-year-old man presents with a 5-day history of low-grade fever, dry cough, and malaise. Vital signs show temperature 38.2°C, heart rate 92 bpm, respiratory rate 18/min, blood pressure 118/76 mmHg, and oxygen saturation 96% on room air. Chest radiograph demonstrates diffuse patchy interstitial infiltrates. Physical examination reveals only scattered end-inspiratory crackles; consolidation is absent. Leukocyte count is normal. He denies dyspnea. Which organism best explains this clinical and radiographic pattern?
- A)Staphylococcus aureus pneumonia
- B)Aspiration pneumonia due to anaerobes
- C)Klebsiella pneumoniae
- D)Mycoplasma pneumoniaeGABARITO
- E)Streptococcus pneumoniae
Explicação
Mycoplasma pneumoniae is correct. The radiographic findings are disproportionately impressive compared with the physical examination, which is classic for atypical pneumonia. Dry cough and diffuse interstitial infiltrates in a young adult strongly support Myco... Ver explicação completa e trilha adaptativa →