Spectrum: Local Antimicrobial Stewardship, for UCLA Health

Microbiology

Most Likely Pathogens

Staphylococcus aureus (MRSA and MSSA)

Pseudomonas aeruginosa

Other Gram-negative bacilli

Note

Enterococci, Stenotrophomonas, and Candida species are often isolated from the sputum in intubated patients. In general, they should be considered to be colonizing organisms and should NOT be treated with antimicrobials.