Table 3. Common treatment regimens for important bacterial pathogens (32-35,37).

Organism types	Suggested initial regimen
Oral flora	Beta lactam/beta lactamase inhibitor, carbapenem
Single pathogen (non-oral flora, non-putrid sputum)	Specific to organism sensitivity pattern
Single pathogen (non-oral flora, putrid sputum)	Beta lactam/beta lactamase inhibitor, carbapenem
Gram Negatives (K. pneumoniae, P. aeruginosa)	Specific to organism sensitivity (broad resistance)
Methicillin-sensitive S. aureus	Cefazolin, nafcillin, oxacillin
Methicillin-resistant S. aureus	Vancomycin, linezolid