Case study: A 75 year old man was transferred to an emergency room from a local nursing home where he is on long-term ventilator care. He presented as lethargic and a pale complexion. His admission temperature was 101.5oF, and during respiration, the right side of his chest moved better than the left side. The patient complained of chills.
Testing: A chest x-ray was performed and showed inflammation in the left lung. A sputum sample was collected and it contained blood. A smear of the sputum demonstrated no acid-fast bacteria. Culturing the sputum on MacConkey agar produced pinkish to reddish colored colonies.
- What is the causative agent and what is your diagnosis?
- What evidence led you to your decision?
- What treatment would you suggest for this patient?