A 23-year-old man presented with fever, hemoptysis, and right-sided pleuritic chest pain for a day. The patient had no remarkable medical history, had not visited any infected localities, or was not on any regular medications. Physical examination Blood pressure: 140/60 mmHg Heart rate: 89/min Temperature: 40°C Respiratory rate: 20 breaths/min Oxygen saturation: 98% in room air Bronchial breathing along with rales was observed in the right infrascapular region.
No sign of meningitis was observed. Laboratory investigations: Hemoglobin level: 146 g/L (normal 140–175 g/L) White blood cell count: 19.6 × 10 9 /L (normal 3.5–10.0 × 109/L) Platelets count: 373 × 10 9 /L (Normal) Urea: 3.7 mmol/L (Normal 2.5–7.0 mmol/L) Creatinine: 104 µmol/L (Normal 50–100 µmol/L) Sodium: 140 mmol/L (Normal 135–145 mmol/L) Potassium: 3.6 mmol/L (normal 3.5–4.5) eGFR: 87 ml/min/1.7 m 2 (normal > 90) C-reactive…