Week 9 Q 3
A 60-year-old man with no prior history of illness had a mild upper respiratory infection for a few days, and yesterday suddenly developed fever, rigors, and right-sided chest pain with inspiration. This morning, he was coughing up yellow sputum with rust-colored blood tinging. His temperature on admission was 102oF. Rales were audible over the lower right chest posteriorly. Chest x-ray demonstrated a right lower lobe consolidated infiltrate with air bronchograms. CBC revealed a white cell count of 18,000, with 70 polys, 10 bands, and 20 lymphocytes. The remainder of the CBC was normal.
- Discuss the differential diagnosis.
- What is the most likely diagnosis?
- Explain the pathophysiology.
What are the common pathogens causing pneumonia in patients of different ages and comorbidities? (i.e. infants, elderly, young adults, smokers, HIV+…)