Correct!
3. Poor treatment outcomes are usually due to antibiotic resistance.

The mortality of S aureus pneumonia has been reported to be 20-50%. Necrotizing S. aureus pneumonia has particularly high mortality despite proper use of antibiotics. Host factors, virulence factors (such as Panton-Valentine leucocidin), and coinfection with organisms like influenza A, all play a role.  
During the eight through twelfth hospital days the patient experienced no further hemoptysis, was slowly weaned off pressors and experienced gradually decreasing oxygen requirement to 40% FiO2. Extubation was attempted and failed.

Which of the following is most likely to lead to a diagnosis in this case? (Click on the correct answer to be directed to the fifth and final page)

1. Scrotal ultrasound
2. Bone marrow biopsy
3. Alpha-fetoprotein assay
4. Reconsideration of the studies already performed, integrating the history and physical examination.
5. None of the above

Home/Pulmonary/Critical Care