1. A 62-year-old male presents with productive cough, dyspnea, and fever 2 days after hospitalisation for a stroke. Chest imaging confirms pneumonia in the basilar region of the right lower lobe. What is the most likely organism?

• Staphylococcus aureus
• Pseudomonas aeruginosa
• Klebsiella pneumoniae
• Streptococcus pneumoniae

2. A 4-year-old female has had rhinorrhea, low-grade fever, and cough for 3 days. She now has tachypnea, intercostal retractions, and decreased breath sounds at the right lung base. Chest x-ray confirms pneumonia. She should be admitted for which of the following reasons?

• Oxygen saturation 88% on room air
• Age less than 5 years old
• Residency in a rural setting
• History of reactive airway disease

3. A 72-year-old male with early dementia presents with a 2-day history of high fevers, productive cough, and confusion. His temperature is 102°F. Chest x-ray shows right upper lobe infiltrate. What is the most appropriate empiric therapy?

• IV vancomycin
• Oral doxycycline
• IV ceftriaxone plus oral azithromycin
• Respiratory fluoroquinolone

4. A 28-year-old female with SLE on chronic steroids presents with a productive cough for 1 week. She is now febrile to 100.9°F with dyspnea. What additional therapy should be started given her immunosuppression?

• IV acyclovir
• Oral atovaquone
• IVIG
• Oral sulfamethoxazole/trimethoprim

5. A 63-year-old male smoker presents with recurrent pneumonia. Chest CT reveals a right upper lobe mass with pneumonia in the same area. Which of the following is most appropriate?

• BAL
• PET scan
• CT-guided biopsy
• Empiric radiation therapy